<h2>Berkelium</h2>
is a synthetic radioactive metallic element. It has the symbol Bk and the atomic number 97. It is also an actinoid found in the actinide series (which includes actinium). Berkelium was first synthesized by bombarding americium with helium ions. It was named after the University of California, Berkeley. This was the fifth transuranic element to be synthesized. This silvery metal easily oxidizes in air at elevated temperatures and is readily dissolvable in mineral acids.
Berkelium was first produced by Glenn T. Seaborg, Albert Ghiorso, Stanley G. Thompson, and Kenneth Street at UC Berkeley in December 1949. The first time Bk was produced in a pure visible amount was in 1958. This element and its compounds have literally no uses outside of basic research and also has no biological role. 
There are also 19 known radioisotopes of berkelium. The most stable is Bk-247 with a half-life of 1380 years. While the other fairly stable isotopes are Bk-248 (half-life 9 years) and Bk-249 (half-life 330 days). All the other radioactive isotopes have a half-life of less than 5 days, and the majority of them less than 5 hours. Berkelium has two meta states. The isotopes range in atomic weight from 235.057 (Bk-235) to 254.091 (Bk-254).
<h3>&#8211;</h3>
Bk-249 is also the most widely used isotope of berkelium produced in large quantities in nuclear reactors. The production of Bk-249 requires 11 successive neutron captures on uranium-238 without any nuclear fission or alpha-decay. Because of this, Bk-249 can only be produced in small amounts at a time. Berkelium-249 is quickly transformed into Bk-250 if is remains inactive in a thermal reactor. It will then decay into californium-250 or curium-245.
Berkelium accumulates in the skeletal system and the radiation from it can cause red blood cell damage. The maximum amount of berkelium the average human can live with in their skeletal system is 0.4 nanograms or 4 billionths of a gram (less than 1 trillionth of an ounce).
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What is Berkelium?

Human-caused climate change has intensified the strength of Atlantic hurricanes by about 18 miles per hour (29 kilometers per hour) over the past six years, according to a recent study.



For most of the 40 storms analyzed, the extra energy from warmer oceans caused them to escalate by an entire hurricane category, as reported in the journal <a href="https://dx.doi.org/10.1088/2752-5295/ad8d02" target="_blank" rel="noreferrer noopener">Environmental Research: Climate</a>. 



According to the National Oceanic and Atmospheric Administration (<a href="https://www.noaa.gov/" target="_blank" rel="noreferrer noopener">NOAA</a>), a Category 5 storm causes more than 400 times the damage of a minimal Category 1 hurricane, over 140 times the damage of a minimal Category 3 hurricane, and more than five times the damage of a minimal Category 4 storm.



<h2 class="wp-block-heading" id="h-significant-increases-in-wind-speed">Significant increases in wind speed</h2>



For three storms, including this month's Hurricane Rafael, climate change boosted <a href="https://www.earth.com/news/new-method-developed-to-measure-the-wind/" target="_blank" rel="noreferrer noopener">wind</a> speeds so much that they increased by two storm categories. According to the study authors, this is not about more storms but increasing power from the worst storms.



“We know that the intensity of these storms is causing a lot more catastrophic damage in general,” said lead author Daniel Gilford, a climate scientist at <a href="https://www.climatecentral.org/" target="_blank" rel="noreferrer noopener">Climate Central</a>, which conducts research on global warming. “Damages do scale (up) with the intensity.”



<h2 class="wp-block-heading" id="h-hurricane-strength-in-a-warmer-climate">Hurricane strength in a warmer climate </h2>



The effect was especially noticeable in more powerful storms, including those that reached the top of the Saffir-Simpson scale of storm intensity: Category Five, according to the study's authors.&nbsp;



While the study focused on storms from 2019 to 2023, the researchers included recent named storms from this year, all of which experienced an increase due to <a href="https://www.earth.com/news/coastal-hurricanes-are-intensifying-faster-due-to-climate-change/" target="_blank" rel="noreferrer noopener">climate change</a>.



“We had two Category Five storms here in 2024,” Gilford said. “Our analysis shows that we would have had zero Category Five storms without human-caused climate change.”



<h2 class="wp-block-heading" id="h-notable-hurricanes-that-gained-strength">Notable hurricanes that gained strength </h2>



This year's three most devastating storms - Beryl, Helene, and Milton - increased by 18 mph (29 kph), 16 mph (26 kph), and 24 mph (39 kph) respectively because of climate change, the authors stated.&nbsp;



A separate study by <a href="https://www.worldweatherattribution.org/" target="_blank" rel="noreferrer noopener">World Weather Attribution</a> (WWA) found that deadly Helene's wind speed increased by about 13 mph, which is close, noted <a href="https://www.imperial.ac.uk/" target="_blank" rel="noreferrer noopener">Imperial College London</a> climate scientist Friederike Otto, who coordinates the WWA team and praised the Climate Central work.



“It absolutely makes sense from a fundamental standpoint that what's going on is we've added more energy to the system,” NOAA chief Rick Spinrad said at United Nations climate talks in Baku, Azerbaijan. 



“The change is going to manifest in terms of what we're already seeing. You look at Hurricane Helene which was massive, 500 miles across. We're going to see changes in terms of the velocity of these storms. We're going to see changes in terms of Hurricane Milton spawning so many tornadoes.”



<h2 class="wp-block-heading" id="h-consistent-patterns-over-recent-years">Consistent patterns over recent years</h2>



Since 2019, eight storms - 2019's Humberto, 2020's Zeta, 2021's Sam and Larry, 2022's Earl, 2023's Franklin, and 2024's Isaac and Rafael - have increased by at least 25 mph (40 kph) in wind speed. Humberto and Zeta saw the most significant gains, each increasing by 31 miles per hour (50 kph).



In 85% of the storms studied over the last six years, the authors observed a clear fingerprint of climate change in <a href="https://www.earth.com/news/what-causes-the-rapid-intensification-of-hurricanes/" target="_blank" rel="noreferrer noopener">storm strength</a>, Gilford said.



<h2 class="wp-block-heading" id="h-warmer-oceans-and-hurricane-strength">Warmer oceans and hurricane strength</h2>



Warm water is the main fuel for hurricanes. The warmer the Atlantic, Caribbean, and Gulf of Mexico become, the more potential energy is available for storms. Other factors - such as high-level crosswinds and dry air - can weaken hurricanes.



The waters in hurricane-prone areas have increased by 2 to 3 degrees Fahrenheit (1.1 to 1.6 degrees Celsius) on average, and by as much as 4 degrees Fahrenheit (2.2 degrees Celsius) due to climate change, Gilford explained.&nbsp;



<h2 class="wp-block-heading" id="h-linking-warmer-water-to-stronger-storms">Linking warmer water to stronger storms</h2>



This information comes from Climate Central's use of scientifically accepted techniques to regularly track how much warmer oceans are due to the burning of coal, oil, and natural gas.



The experts use computer simulations to create a fictional world without human-caused warming and then compare it to current reality, attributing the differences to <a href="https://www.earth.com/news/2023-climate-change-report-record-high-temperatures-greenhouse-gases-sea-level-rise/" target="_blank" rel="noreferrer noopener">greenhouse gases</a>. 



They also account for other factors, such as the reduction of sulfate pollution from marine shipping, which had been slightly counteracting the warming before skies became clearer.



To understand how warmer waters lead to stronger storms, the authors examined a parameter called potential intensity, which is essentially the speed limit for any given storm based on the environmental conditions around it.



<h2 class="wp-block-heading" id="h-expert-insights-and-future-implications">Expert insights and future implications</h2>



<a href="https://www.mit.edu/">MIT</a> hurricane expert and meteorology professor Kerry Emanuel, who pioneered potential intensity measurements, wasn't part of the study but said the findings are logical. It demonstrates the increase in storm strength that he predicted would occur 37 years ago, he noted.



Previous studies have shown that climate change has caused hurricanes to intensify more quickly and move more slowly, leading to increased rainfall.



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Climate change has amplified hurricane strength

Human-caused climate change has intensified the strength of Atlantic hurricanes...

Who doesn't love a bit of sparkle? We've seen it with many singers in their bling-filled performances. Yet, this desire for dazzle isn't just confined to the world of pop music. 



In the animal kingdom, you can find shiny creatures like jewel beetles and the fabulous Opaluma rupaul - a fly named after the iconic entertainer RuPaul - that boast flashy appearances.



Now, wouldn't such obvious displays make these animals easy targets for predators? As surprising as it may sound, science suggests otherwise.



<h2 class="wp-block-heading" id="h-power-of-changeability">Power of changeability</h2>



One might think that standing out like a brilliant beacon would guarantee a <a href="https://www.earth.com/news/largest-predator-prey-feast-ever-seen-in-the-ocean-enormous-quickly-altered-food-chain/" target="_blank" rel="noreferrer noopener">predator’s attention</a>. However, these unusually bright features aren't just for attracting attention.



A particular trait of these shiny appearances - their changeability - can actually aid the animals in evading predators.



<h2 class="wp-block-heading" id="h-environment-as-camouflage">Environment as camouflage</h2>



Shiny animals, when they reflect the sun, produce bright flashes. The mirror-like aspect of their bodies also reflects the environment around them. 



This constant change of reflections as the <a href="https://www.earth.com/news/animals-got-their-colors-150-million-years-before-plants/" target="_blank" rel="noreferrer noopener">animals</a> move can be compared to a mirror ball. For a predator, tracking down a prey that exhibits such visual variability becomes a difficult task.



<h2 class="wp-block-heading" id="h-challenges-of-chasing-shiny-animals">Challenges of chasing shiny animals</h2>



Tests involving both bird and insect <a href="https://www.earth.com/news/predators-increase-the-health-of-prey-populations-but-reduce-their-size/" target="_blank" rel="noreferrer noopener">predators</a> have revealed a common struggle - they find it challenging to be accurate when they attack a visually changing prey.



So, what exactly triggers this effect? Is it the predator's inability to track the prey visually ? Or perhaps it involves a misjudgment of prey speed? Are optical illusions at play?



<h2 class="wp-block-heading" id="h-illusion-of-speed-and-position">Illusion of speed and position</h2>



Studies involving humans have shown the potential for optical illusions to disrupt prey speed perception. For instance, black and white stripes can make a target appear to be moving faster or slower than its actual speed. 



When a predator encounters highly reflective, shiny targets, a similar effect could lead them to misjudge the prey's speed.



Moreover, bright flashes from a shiny animal may cause a flash-lag illusion, making the predators perceive the prey's position to be slightly behind its real position.



<h2 class="wp-block-heading" id="h-shiny-animals-confuse-predators">Shiny animals confuse predators</h2>



Both the disruption of speed perception and the flash-lag illusion can result in directional errors in predator behaviors. 



This means <a href="https://www.earth.com/news/danger-zones-climate-change-is-altering-predator-prey-dynamics/" target="_blank" rel="noreferrer noopener">predator tracking and attacks</a> might often be ahead of or trailing behind the target, relative to the target's actual movement direction.



Additionally, the unpredictable appearance of the shiny prey might confuse predators about the precise location of a moving prey. Ultimately, the tracking and final attack by a predator might end up being less accurate.



<h2 class="wp-block-heading" id="h-experimenting-with-jumping-spiders">Experimenting with jumping spiders</h2>



A group of scientists from <a href="https://www.unimelb.edu.au" target="_blank" rel="noreferrer noopener">The University of Melbourne</a> used a high-speed camera to film jumping spiders attacking fake, moving targets.



Jumping spiders were selected for this experiment because they prefer moving prey, eat both shiny and matte prey, and possess excellent vision. Plus, they willingly attack fake moving prey in a lab setting.



<h2 class="wp-block-heading" id="h-interpreting-the-findings">Interpreting the findings</h2>



The high-speed footage enabled the researchers to quantify how well the jumping spiders visually tracked different targets and how accurate their attacks were.



The results revealed that jumping spiders had a harder time tracking and attacking shiny targets compared to matte ones or to those that matched the background. Specifically, their tracking was nearly twice as variable with shiny targets, and their attacks were significantly further away from these same targets.



Notably, these results were not directional relative to the target's path of movement. This does not support the idea that shininess disrupts speed perception, or that localization is disrupted by the flash-lag illusion.



<h2 class="wp-block-heading" id="h-dazzle-and-dodge-defense-of-shiny-animals">Dazzle and dodge: Defense of shiny animals</h2>



In conclusion, while shiny animals may catch the eye, they prove difficult to localize and capture. The research study sheds light on how shiny colors might disrupt perception and lead to these effects.



However, this research is only the tip of the iceberg. There's still much to understand about how these effects are visually processed in animals with different eyes, and how other factors such as sunlight, prey size, shape, and movement behavior influence the perception of shiny animals.



So, next time you see a pop star shine on stage, or even a glistening insect out in the wild, remember there’s more to their shimmer than meets the eye.



The study is published in the journal <a href="https://www.cell.com/current-biology/abstract/S0960-9822(24)01334-4" target="_blank" rel="noreferrer noopener">Current Biology</a>.



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Shiny animals outwit predators with optical illusions

Who doesn't love a bit of sparkle? We've seen it...

We've all been told that a good night's sleep can do wonders. And indeed, who can deny the refreshing feeling that comes after a great sleep session?



Yet, the intricate processes that unfold in our brains while we're catching some z's are still shrouded in mystery. 



The intriguing world of sleep studies is seeing some fresh revelations, thanks to the efforts of researchers at <a href="https://www.rice.edu/" target="_blank" rel="noreferrer noopener">Rice University</a>, Houston Methodist’s Center for Neural Systems Restoration, and Weill Cornell Medical College.



<h2 class="wp-block-heading" id="h-a-journey-of-discovery-begins">A journey of discovery begins</h2>



The main purpose of the study was to shed light on the elusive neural mechanisms that enhance cognitive performance during nonrapid eye movement (<a href="https://www.earth.com/news/sleep-reboots-the-brain-making-room-for-new-memories/" target="_blank" rel="noreferrer noopener">NREM</a>) sleep.



This is the kind of sleep you experience when you're taking a quick nap, nothing too deep. 



The results of the research could potentially change our understanding of how sleep sharpens our brain and might even open new avenues in treating sleep disorders and identifying methods to enhance cognitive and behavioral performance.



<h2 class="wp-block-heading" id="h-unraveling-the-magic-of-sleep">Unraveling the magic of sleep</h2>



The researchers began their investigation by studying the <a href="https://www.earth.com/news/mixed-emotions-linked-to-unique-brain-activity/" target="_blank" rel="noreferrer noopener">neural activity</a> of multiple brain areas in macaque monkeys.



They examined the brain activity of these animals as they performed a visual discrimination task before and after a 30-minute NREM sleep period.



To ensure the animals were indeed sleeping, the team used polysomnography, a method that measures brain and muscle activity.



The results were fascinating. The visual task performance of the animals improved post-sleep and showed enhanced accuracy.



This improvement was found only in the macaques who actually fell asleep - those that remained awake didn't see the same performance shift.



<h2 class="wp-block-heading" id="h-a-deeper-dive-into-sleep-s-magic">A deeper dive into sleep’s magic</h2>



The effects of sleep on neural activity in the macaques were described by Dr. Natasha Kharas, the study's first author. 



“During sleep, we observed an increase in low-frequency delta wave activity and synchronized firing among neurons across different cortical regions," noted Dr. Kharas.



"After sleep, however, neuronal activity became more desynchronized compared to before sleep, allowing neurons to fire more independently. This shift led to improved accuracy in information processing and performance in the visual tasks.”



<h2 class="wp-block-heading" id="h-the-power-of-simulating-sleep">The power of simulating sleep</h2>



In their relentless pursuit of understanding sleep's magic, the researchers went a step further. 



They replicated the neural effects of sleep through low-frequency electrical stimulation of the visual cortex in macaques that were awake.



In this way, specific patterns of stimulation could potentially be used to mimic the cognitive <a href="https://www.earth.com/news/consistent-sleep-slows-down-aging-at-a-cellular-level/" target="_blank" rel="noreferrer noopener">benefits of sleep</a>.



<h2 class="wp-block-heading" id="h-restorative-effects-of-sleep">Restorative effects of sleep</h2>



The implications of the replicated sleep effects are game-changing.



The results hint that the restorative and performance-enhancing effects of sleep could potentially be achieved even without actual sleep.



“The ability to reproduce sleeplike neural desynchronization in an awake state opens new possibilities for enhancing cognitive and perceptual performance in situations where sleep is not feasible - such as for individuals with <a href="https://www.earth.com/news/daylight-saving-time-changes-are-directly-linked-to-sleep-disorders/" target="_blank" rel="noreferrer noopener">sleep disorders</a> or in extenuating circumstances such as space exploration,” stated Valentin Dragoi, the study's co-author.



<h2 class="wp-block-heading" id="h-deepening-our-understanding-of-sleep">Deepening our understanding of sleep</h2>



According to Dragoi, the study is unique as it not only deepens our understanding of sleep's role in cognitive function but also breaks new ground by showing that specific patterns of brain stimulation could substitute for some of the restorative effects of sleep.



“We have uncovered a surprising solution that the brain employs after sleep whereby neural populations participating in the task reduce their level of synchrony after sleep, despite receiving synchronizing inputs during sleep itself,” explained Dragoi.



This revelation highlights how NREM sleep effectively 'boosts' cognitive function by resetting neural activity.



“Our study not only deepens our mechanistic understanding of sleep’s role in cognitive function but also breaks new ground by showing that specific patterns of brain stimulation could substitute for some benefits of sleep, pointing toward a future where we might boost brain function independently of sleep itself,” said Dragoi.



<h2 class="wp-block-heading" id="h-broader-implications-of-the-research">Broader implications of the research </h2>



This fascinating study opens exciting possibilities for practical applications in various fields.



From improving cognitive performance in individuals with sleep disorders to optimizing productivity in high-stakes scenarios, such as military operations or space exploration, the potential is vast. 



Additionally, the ability to simulate sleep's effects could pave the way for innovative therapies for neurodegenerative diseases and mental health conditions, where <a href="https://www.earth.com/news/children-who-watch-screens-in-bed-have-the-most-disrupted-sleep/" target="_blank" rel="noreferrer noopener">disrupted sleep</a> plays a significant role. 



As research progresses, integrating these findings into wearable technology or non-invasive devices could make cognitive enhancement accessible and customizable for everyday use.



The full study was published in the journal <a href="https://www.science.org/doi/10.1126/science.adr3339" target="_blank" rel="noreferrer noopener">Science</a>.



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How sleep transforms brain performance

We've all been told that a good night's sleep can...

One of the first things you notice when you step into any kitchen, professional or otherwise, is the myriad of gadgets and tools that make our culinary adventures possible. But what if, hidden among the plastic items, there are potential threats to your food? 



A new study was focused specifically black plastic kitchen utensils and containers. The concerns raised aren't about their functionality but what might lie within them.



<h2 class="wp-block-heading" id="h-plastic-threats-in-everyday-kitchens">Plastic threats in everyday kitchens</h2>



This seemingly innocuous yet essential kitchenware triggered the interest of scientists from <a href="https://duke.edu/" target="_blank" rel="noreferrer noopener">Duke University</a> who embarked on an exploration to see if these items hold more than meets the eye. 



The focus? Toxic flame retardants. Due to their connection to an increased risk of <a href="https://www.earth.com/news/are-we-breathing-cancer-causing-chemicals-in-our-cars/" target="_blank" rel="noreferrer noopener">cancer</a>, hormonal disruption, and neurodevelopmental impacts, many flame retardants have been phased out or banned.



Yet, their remnants may be lurking in the very plastic tools we use daily to stir, serve, and store our food.



<h2 class="wp-block-heading" id="h-chemicals-from-plastic-utensils">Chemicals from plastic utensils </h2>



As the world continues its well-intentioned push for more recycling, inadvertently, we might be creating an unseen cycle of chemical reincarnation. 



<a href="https://www.earth.com/news/household-chemicals-linked-to-neurological-disorders/" target="_blank" rel="noreferrer noopener">Flame retardants</a> are used in products such as TVs that display potential fire risks. During recycling, these chemicals have made their way into kitchenware like spatulas or ladles that do not require such protection.



Dr. Heather Stapleton is a professor of environmental sciences and policy at the Nicholas School of the Environment at Duke University.



"If you find these chemicals in a plastic spatula, does that mean it's getting out of the spatula and into your food? We don't have that answer yet," said Dr. Stapleton. "Is it possible? Absolutely." 



Dr. Stapleton explained that <a href="https://www.earth.com/news/9936-chemicals-found-in-plastic-products-used-for-food-packaging/" target="_blank" rel="noreferrer noopener">when plastic is heated</a>, it leaches chemicals into the environment around it - such as your favorite chili or stir-fry.



Certain foods, particularly those with high fat content, can draw more of the chemicals out, raising concerns about daily exposure.



<h2 class="wp-block-heading" id="h-sushi-trays-convenient-yet-concerning">Sushi trays: Convenient yet concerning</h2>



Grocery store sushi trays were flagged as significant sources of <a href="https://www.earth.com/news/4200-harmful-plastic-chemicals-hidden-in-everyday-objects/" target="_blank" rel="noreferrer noopener">harmful chemicals</a>. 



These convenient carriers displayed high levels of toxic substances, which, combined with prolonged food contact, could lead to potential exposure.



"As an exposure scientist thinking about contact with food and the likelihood these chemicals will leach out in significant amounts, I think there could be some exposure there," said Dr. Stapleton. "But I don't know that it's going to be significant enough to raise concern."



Further research is needed, and Dr. Stapleton has already begun analyzing the sushi trays.



<h2 class="wp-block-heading" id="h-plastic-spatulas-and-trays-for-food">Plastic spatulas and trays for food</h2>



The study did not incite panic among the researchers. Instead, it led them to implement personal changes while addressing the broader issue. 



Study lead author Megan Liu highlighted the importance of policy changes to ensure transparency in <a href="https://www.earth.com/news/global-recycling-day-creating-a-healthier-planet-for-all/" target="_blank" rel="noreferrer noopener">recycling processes</a> and eliminate these chemicals at the source.



Both scientists acknowledged the need for companies to act and governments to ban these hazardous substances.



In response to the study, Liu swapped her black plastic storage containers for glass ones.



While Dr. Stapleton still retains a single black spatula in her kitchen (to preserve her non-stick pan), she balances practicality with precaution, advising people to exercise moderation and not worry excessively.



<h2 class="wp-block-heading" id="h-steps-to-keep-your-kitchen-safe">Steps to keep your kitchen safe</h2>



Those seeking solace from these unsettling revelations can initiate a few changes right away. 



Discarding black plastic takeout containers labeled "No. 6" is recommended. These appear to contain particularly high levels of harmful chemicals.



Another empowering step is to support companies ushering positive change in dealing with hazardous substances.



With the results of the study in mind, opting for wooden or stainless-steel utensils emerges as a safer bet.



<h2 class="wp-block-heading" id="h-what-about-silicone">What about silicone?</h2>



Silicone utensils, often promoted as a safer alternative, also warrant a second glance. 



The material's propensity to attract chemicals from the environment could inadvertently lead to them landing in your food. Though washing could help, it may not eliminate many of the airborne chemicals.



Taking all of this into account, it might be time to review your plastic and other kitchen utensils, not just for their utility but also for their impacts on food and health.



If you are planning a switch, consider exploring wooden, stainless-steel, and bamboo utensils as non-toxic alternatives.



The full study was published in the journal <a href="https://www.sciencedirect.com/science/article/pii/S0045653524022173?via%3Dihub" target="_blank" rel="noreferrer noopener">Chemosphere</a>.



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Plastic kitchen utensils often leach toxic chemicals into your food

One of the first things you notice when you step...

In the pursuit of a more sustainable future, the scientific community tirelessly works on innovative solutions to confront the plastic crisis. Now, an exciting development paves the way towards a different form of ocean-friendly plastic that promotes environmental sustainability.



The team behind this novel innovation comes from the prestigious RIKEN Center for Emergent Matter Science, led by Takuzo Aida.



The study, published in the journal Science, presents a new plastic variant that is both sturdy and biodegradable with a unique attribute - it disintegrates in seawater. 



This means the plastic will not contribute to the mounting issue of microplastic pollution.



<h2 class="wp-block-heading" id="h-overcoming-the-plastic-pitfall">Overcoming the plastic pitfall</h2>



Ironically, it is the durability of plastic that is its most desirable feature but this also causes its most significant environmental issue.



Plastics linger in the environment for centuries, wreaking havoc on ecosystems, particularly in the ocean. Traditional plastics, which are non-biodegradable, gradually fragment and contribute enormously to environmental harm.



The current biodegradable counterparts like polylactic acid (<a href="https://www.earth.com/news/biodegradable-plastic-materials-do-not-biodegrade-in-the-ocean/" target="_blank" rel="noreferrer noopener">PLA</a>), while a step forward, remain water insoluble, and fail to degrade in the ocean.



The result is the accumulation of harmful microplastics in our oceans, that threaten <a href="https://www.earth.com/news/microplastic-pollution-found-in-every-aquatic-species-tested/" target="_blank" rel="noreferrer noopener">aquatic life</a> and infiltrate our food chains.



Recognizing these challenges, Aida and his team ventured into the realm of supramolecular plastics. These <a href="https://www.earth.com/news/plastics-may-live-an-immortal-life-thanks-to-new-techniques/" target="_blank" rel="noreferrer noopener">polymers</a>, with structures held together by reversible interactions, provided a new avenue for exploration.



By combining two ionic monomers, the researchers created a new type of plastic that displays both strength and flexibility.



<h2 class="wp-block-heading" id="h-new-plastic-material-in-ocean">New plastic material in ocean</h2>



The initial tests used sodium hexametaphosphate, a common food additive, and different guanidinium ion-based monomers. 



Since both monomers can be metabolized by bacteria, the plastic biodegrades once dissolved into its components.



The team found that the key to the stability of these plastics lies in the use of cross-linked salt bridges. The bonds in the plastics are not weak but rather strong and stable.



The critical discovery was creating cross links that are irreversible - unless exposed to electrolytes like those found in seawater.



<h2 class="wp-block-heading" id="h-creation-of-new-plastics">Creation of new plastics</h2>



After mixing the two monomers in water, the team noticed two separate liquids. One was thick and viscous, containing the necessary cross-linked salt bridges, while the other was watery with salt ions.



The 'desalting' process became a critical step as, without it, the resulting material was a brittle crystal that was unusable as a plastic.



These plastics exhibit an array of desirable characteristics such as non-toxicity, non-flammability, and the capacity to reshape at temperatures above 120°C, similar to other thermoplastics.



Different types of guanidinium sulfates yielded plastics of varying hardnesses and tensile strengths, comparable or even superior to conventional plastics. 



The versatility of the plastic suggests that it can be customized according to necessity.



<h2 class="wp-block-heading" id="h-future-of-ocean-friendly-plastics">Future of ocean-friendly plastics</h2>



The researchers also tested the new <a href="https://www.earth.com/news/upcycling-plastic-waste-into-valuable-products/" target="_blank" rel="noreferrer noopener">plastic's recyclability</a> and biodegradability. Astonishingly, they were able to recover 91% hexametaphosphate and 82% guanidinium after dissolving the plastic in salt water.



Soil tests revealed complete degradation of the new plastic over ten days, even proving beneficial by supplying the soil with phosphorous and nitrogen, akin to a fertilizer effect.



“With this new material, we have created a new family of plastics that are strong, stable, recyclable, can serve multiple functions and, importantly, do not generate microplastics,” said Aida.



This powerful innovation exemplifies the possibilities of combining science, ingenuity, and a commitment to sustainability. With these ocean-friendly plastics, we are one step closer to a cleaner, healthier, and more sustainable world.



<h2 class="wp-block-heading" id="h-from-the-lab-to-the-real-world">From the lab to the real world</h2>



While this breakthrough from <a href="https://www.riken.jp/en/research/labs/cems/" target="_blank" rel="noreferrer noopener">RIKEN Center for Emergent Matter Science</a> is exciting, moving it from the lab to real-world use is no small task.



Scaling up production will require fine-tuning the manufacturing process to ensure it's both cost-effective and practical for widespread adoption. 



One critical hurdle is how to optimize the desalting step, which plays a vital role in creating the plastic’s unique properties, without driving up production costs. This innovation is a small but significant step toward tackling the massive <a href="https://www.earth.com/news/ocean-plastic-pollution-has-become-a-global-crisis/" target="_blank" rel="noreferrer noopener">plastic problem</a>.



It offers a glimpse of what’s possible when cutting-edge science and environmental responsibility come together. 



While challenges remain, this new plastic material could pave the way for a cleaner, healthier world of oceans.



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New plastic is soluble in seawater

In the pursuit of a more sustainable future, the scientific...

The ESA-led Solar Orbiter mission is currently observing and studying the Sun with six different imaging instruments, allowing the spacecraft to peel away the Sun's many layers and reveal its diverse faces.



<h2 class="wp-block-heading" id="h-high-resolution-views-of-the-sun">High-resolution views of the Sun</h2>



Recently, the mission released the highest-resolution full views to date of the Sun's visible surface, known as the photosphere.&nbsp;



The images were assembled from data captured by the spacecraft's Polarimetric and Helioseismic Imager (PHI).&nbsp;



This instrument not only photographs the Sun in visible light but also measures the direction of the <a href="https://search.app?link=https%3A%2F%2Fwww.earth.com%2Fnews%2Forigin-of-the-suns-magnetic-field-discovered-after-400-years%2F&amp;utm_campaign=aga&amp;utm_source=agsadl2%2Csh%2Fx%2Fgs%2Fm2%2F4" target="_blank" rel="noreferrer noopener">magnetic field</a> and maps the speed and direction in which different parts of the surface are moving.



PHI's measurements of the photosphere can be directly compared to a new image of the Sun's outer atmosphere, the corona.&nbsp;



This image is essentially a mosaic assembled from high-resolution images taken by the Extreme Ultraviolet Imager (EUI) instrument on the same day in March 2023. The EUI captures images of the Sun in ultraviolet light.



<div class="wp-block-sendtonews-playerselector">[sendtonews key="wWscNjX6hZ-4055472-12187" type="single"]</div>



Daniel Müller, Solar Orbiter's Project Scientist, noted that the Sun's <a href="https://www.earth.com/news/solar-dynamo-sun-magnetic-field-origin-generated-near-surface/" target="_blank" rel="noreferrer noopener">magnetic field</a> is key to understanding the dynamic nature of our home star from the smallest to the largest scales.&nbsp;



“These new high-resolution maps from Solar Orbiter's PHI instrument show the beauty of the Sun's surface magnetic field and flows in great detail,” said Miller.



“At the same time, they are crucial for inferring the magnetic field in the Sun's hot corona, which our EUI instrument is imaging.”&nbsp;



The image release builds upon one from two years ago when the mission shared full images of the Sun taken by the spacecraft's EUI and Spectral Imaging of the Coronal Environment (SPICE) instruments on March 7, 2022.



<h2 class="wp-block-heading" id="h-sunspots-and-a-chaotic-magnetic-field">Sunspots and a chaotic magnetic field</h2>



Zooming into PHI's detailed visible light images reveals the Sun's “surface” for what it truly is: a constantly moving layer of glowing, hot plasma (charged gas). 



This layer emits almost all the Sun's radiation and has a temperature between 4,500 and 6,000°C. 



Beneath it lies the convection zone, where hot, dense plasma churns similarly to magma in Earth's mantle. This turbulent movement gives the Sun's surface its grainy appearance.



The most striking features in the images are the <a href="https://www.earth.com/news/sun-solar-cycle-25-highest-number-sunspots-activity-seen-since-2001/" target="_blank" rel="noreferrer noopener">sunspots</a>. In the visible light images, these appear as dark spots or holes on the otherwise smooth surface. Sunspots are cooler than their surroundings, emitting less light as a result.



PHI's magnetic map, or “magnetogram," shows that the Sun's magnetic field is concentrated in the sunspot regions, pointing either outward (red) or inward (blue) where the sunspots lie.&nbsp;



The strong magnetic field explains why plasma inside sunspots is cooler. Normally, convection moves heat from inside the Sun to its surface, but this process is disrupted as charged particles are forced to follow the dense magnetic field lines in and around the sunspots.



<h2 class="wp-block-heading" id="h-mapping-movement-on-the-surface">Mapping movement on the surface</h2>



The speed and direction of material movement on the Sun's surface are displayed in PHI's velocity map, also known as a “tachogram.”&nbsp;



In this map, blue indicates movement toward the spacecraft, while red signifies movement away. The map reveals that while the plasma on the Sun's surface generally rotates with the Sun's overall spin around its axis, it is pushed outward around the sunspots.



<figure class="wp-block-image aligncenter size-full"><a href="https://www.earth.com/wp-content/uploads/2024/11/Solar-Orbiter_3-views-of-Sun_lenses_ESA_1m.jpg" target="_blank" rel="noreferrer noopener"><img src="https://www.earth.com/wp-content/uploads/2024/11/Solar-Orbiter_3-views-of-Sun_lenses_ESA_1s.webp" alt="The three views of the Sun's surface shown here are based on measurements taken on March 22, 2023 by the ESA-led Solar Orbiter mission. From left to right, you see the Sun in visible light, a magnetic map of the Sun, and a map of the line-of-sight speed and direction of movement of material at the Sun's visible surface. Credit: ESA" class="wp-image-1951400"/></a><figcaption class="wp-element-caption">The three views of the Sun's surface shown here are based on measurements taken on March 22, 2023 by the ESA-led Solar Orbiter mission. From left to right, you see the Sun in visible light, a magnetic map of the Sun, and a map of the line-of-sight speed and direction of movement of material at the Sun's visible surface. Credit: ESA</figcaption></figure>



Finally, EUI's image of the Sun's <a href="https://www.earth.com/news/why-is-the-suns-corona-hotter-than-its-surface/" target="_blank" rel="noreferrer noopener">corona</a> shows what happens above the photosphere. Above the active sunspot regions, glowing plasma protrudes outward. 



This million-degree plasma follows magnetic field lines extending from the Sun, often connecting neighboring sunspots.



<h2 class="wp-block-heading" id="h-piecing-together-the-sun-s-mosaic">Piecing together the Sun's mosaic</h2>



The images were captured when the Solar Orbiter was less than 74 million kilometers from the Sun.&nbsp;



Being so close meant that each high-resolution image taken by PHI and EUI covered only a small portion of the Sun. To image the entire face, the spacecraft had to be tilted and rotated after each individual image was taken.



To create the full-disc images presented, all individual images were stitched together like a mosaic. Both the PHI and EUI mosaics consist of 25 images each, captured over more than four hours.&nbsp;



The resulting mosaics have a diameter of nearly 8,000 pixels, revealing an astonishing amount of detail.



The image processing required to produce the PHI mosaics was new and challenging. 



Now that it has been accomplished once, future data processing and mosaic assembly will be faster. The PHI team expects to provide such high-resolution mosaics twice a year.



<h2 class="wp-block-heading" id="h-advancing-our-understanding-of-the-sun">Advancing our understanding of the Sun</h2>



The new images not only showcase the beauty of our star but also enhance our understanding of its complex magnetic fields and dynamic processes.&nbsp;



By comparing data from different instruments, scientists can gain deeper insights into how the Sun's magnetic field influences phenomena from the smallest to the largest scales.



With continued efforts from missions like Solar Orbiter, we are peeling back the layers of the Sun to better comprehend its impact on our Solar System.



Video/ Image Credit: European Space Agency&nbsp;



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Solar Orbiter spacecraft sees the Sun through three different lenses

The ESA-led Solar Orbiter mission is currently observing and studying...

You probably know at least a little bit about ocean circulation around the world, also known as currents. In fact, you may have felt smaller currents yourself on a day at the beach.



But have you heard bout the "great global ocean conveyor belt," which is a vast network of currents that constantly moves water around the entire planet?



This massive system helps distribute heat around the world, influencing everything from temperatures to rainfall. Unfortunately, it's slowing down and on the verge of total collapse.



Scientists have been studying this phenomenon, and according to recent research published in <a href="https://www.nature.com/articles/s41561-024-01568-1" target="_blank" rel="noreferrer noopener">Nature Geoscience</a>, it's a bigger deal than we thought. 



<h2 class="wp-block-heading" id="h-ocean-circulation-and-the-amoc">Ocean circulation and the AMOC?</h2>



The Atlantic Meridional Overturning Circulation, or AMOC, is like a massive ocean conveyor belt that moves warm and cold water around the <a href="https://www.earth.com/news/why-the-atlantic-ocean-may-ultimately-vanish/" target="_blank" rel="noreferrer noopener">Atlantic Ocean</a>. 



It starts in the Gulf of Mexico, where warm, salty water flows northward along the eastern coast of the United States and across the Atlantic towards Europe. 



As this warm water reaches the North Atlantic, it cools down, becomes denser, and sinks deep into the ocean. 



This sinking process pulls more warm water north to replace it, creating a continuous loop that helps <a href="https://www.earth.com/news/collapse-of-major-ocean-system-would-cause-weather-chaos/" target="_blank" rel="noreferrer noopener">regulate the climate</a> by distributing heat across the planet. 



Thanks to the AMOC, regions like Western Europe enjoy milder winters than they would otherwise.



Humans rely on the AMOC in several important ways. By regulating global temperatures, it helps maintain stable weather patterns, which are crucial for agriculture, ecosystems, and our daily lives. 



Researchers point out that the Atlantic Meridional Overturning Circulation (AMOC) is now weaker than at any other time in the past 1,000 years.



The research team from several leading universities explains that global warming is behind this slowdown. 



Their new modeling suggests that meltwater from the <a href="https://www.earth.com/news/greenlands-melting-icebergs-may-not-be-threat-to-ocean-currents-amoc/" target="_blank" rel="noreferrer noopener">Greenland ice sheet</a> and Canadian glaciers could be the missing piece of the puzzle.



<h2 class="wp-block-heading" id="h-why-should-we-care-about-this">Why should we care about this?</h2>



"Our results show the Atlantic overturning circulation is likely to become a third weaker than it was 70 years ago at 2°C of global warming," says the research team. 



"This would bring big changes to the <a href="https://www.earth.com/news/the-arctic-is-melting-fast-but-a-slowing-ocean-current-could-help/" target="_blank" rel="noreferrer noopener">climate and ecosystems</a>, including faster warming in the southern hemisphere, harsher winters in Europe, and weakening of the northern hemisphere's tropical monsoons."



Think about that for a second. A weaker ocean current could mean colder winters in Europe and shifts in rainfall patterns that affect millions of people. It's not just about the ocean; <a href="https://www.earth.com/news/disastrous-climate-changes-of-the-last-ice-age-could-happen-again/" target="_blank" rel="noreferrer noopener">it's about our daily lives</a>.



<h2 class="wp-block-heading" id="h-meltwater-and-ocean-circulation">Meltwater and ocean circulation</h2>



The Earth has already warmed 1.5ºC since the industrial revolution. And get this: the Arctic has been heating up nearly four times faster than the rest of the planet. 



All that heat is melting Arctic sea ice, glaciers, and the Greenland ice sheet.



"Since 2002, Greenland lost 5,900 billion tons (gigatons) of ice," notes the research team. "To put that into perspective, imagine if the entire state of Texas was covered in ice 26 feet thick."



All this fresh meltwater flowing into the subarctic ocean is lighter than salty seawater, so it doesn't sink as much. 



That messes with the southward flow of deep, cold waters from the Atlantic and <a href="https://www.earth.com/news/climate-change-will-impact-the-gulf-stream-more-than-we-thought/" target="_blank" rel="noreferrer noopener">weakens the Gulf Stream</a> -- the same current that gives Britain its mild winters.



<h2 class="wp-block-heading" id="h-ripple-effects-around-the-globe">Ripple effects around the globe</h2>



So, what's the big deal with the Gulf Stream slowing down? Well, for starters, Europe could face harsher winters. 



<a href="https://www.earth.com/news/climate-paradox-ocean-current-collapse-could-plunge-europe-into-cold/" target="_blank" rel="noreferrer noopener">Places like Britain</a> might start feeling more like their chilly counterparts at the same latitude, such as parts of Canada.



<figure class="wp-block-image aligncenter size-full is-resized"><a href="https://www.earth.com/wp-content/uploads/2024/11/Atlantic-Meridional-Overturning-Circulation_AMOC_collapsing_Nature-Geoscience_1m.jpg" target="_blank" rel="noreferrer noopener"><img src="https://www.earth.com/wp-content/uploads/2024/11/Atlantic-Meridional-Overturning-Circulation_AMOC_collapsing_Nature-Geoscience_1s.webp" alt="The addition of meltwater in the North Atlantic leads to localised cooling in the subpolar North Atlantic and warming in the South Atlantic. Credit: Nature Geoscience (2024)." class="wp-image-1951410" style="width:300px;height:auto"/></a><figcaption class="wp-element-caption">The addition of meltwater in the North Atlantic leads to localised cooling in the subpolar North Atlantic and warming in the South Atlantic. Credit: Nature Geoscience (2024).</figcaption></figure>



"Our new research shows meltwater from the Greenland ice sheet and Arctic glaciers in Canada is the missing piece in the climate puzzle," the researchers explain. 



When they included this meltwater in their simulations, the slowing of the oceanic circulation made sense.



The study confirms that the Atlantic overturning circulation has been slowing down since the mid-20th century. It also gives us a sneak peek into <a href="https://www.earth.com/news/atlantic-and-arctic-mixing-is-crucial-for-earths-climate-stability/" target="_blank" rel="noreferrer noopener">what's coming next</a>.



<h2 class="wp-block-heading" id="h-northern-and-southern-oceans-connected">Northern and Southern oceans connected</h2>



"Our new research also shows the North and South Atlantic oceans are more connected than previously thought," the team states. 



Changes in one part of the ocean can quickly affect distant regions. When the oceanic circulation is strong, it transfers a lot of heat to the <a href="https://www.earth.com/news/antarctic-warming-triggers-rising-north-atlantic-sea-levels/" target="_blank" rel="noreferrer noopener">North Atlantic</a>. 



But when it weakens, the surface of the ocean south of Greenland doesn't warm up as much, leading to what's called a "warming hole." Meanwhile, the South Atlantic ends up storing more heat and salt.



<h2 class="wp-block-heading" id="h-time-is-not-on-our-side">Time is not on our side</h2>



"Our simulations show changes in the far North Atlantic are felt in the South Atlantic Ocean in less than two decades," the researchers reveal. This means the effects of the slowdown are spreading faster than we thought.



Climate projections have suggested the Atlantic overturning circulation will weaken by about 30% by 2060. But hold on -- that's without considering all that extra meltwater.



"The Greenland ice sheet will continue melting over the coming century, possibly raising global sea level by about 4 inches," the study notes. 



"If this additional meltwater is included in climate projections, the overturning circulation will weaken faster. It could be 30% weaker by 2040. That's 20 years earlier than initially projected."



<h2 class="wp-block-heading" id="h-what-can-we-do">What can we do?</h2>



Such a rapid decrease in the overturning circulation will shake things up. 



Europe might see colder winters, the northern tropics could get drier, and places like the southern United States might experience warmer, wetter summers.



"Our climate has changed dramatically over the past 20 years," the researchers warn. "More rapid melting of the ice sheets will accelerate further disruption of the climate system."



So, what does this all mean for us? It means we have even less time to get our act together. Reducing emissions isn't just a good idea -- it's crucial.



Our planet's systems are interconnected in ways we're only beginning to understand. If we want to keep things from getting worse, we need to act now. Every little bit counts, and the clock is ticking.



The full study was published in the journal <a href="https://www.nature.com/articles/s41561-024-01568-1" target="_blank" rel="noreferrer noopener">Nature Geoscience</a>.



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Collapse of Earth's main ocean water circulation system is already happening

You probably know at least a little bit about ocean...

A,Vintage,World,Globe,Tilted,And,Standing,On,A,Central

Picture this: every time you use water from your tap, you're inadvertently influencing our Earth's rotational tilt and climate change. Strange, and not a good thing, but true.



Our planet is a dynamic entity, constantly shifting and adapting. Believe it or not, something as seemingly insignificant as our water usage can cause Earth's physical orientation to deviate. 



Over less than two decades, our groundwater pumping has tilted the <a href="https://www.earth.com/news/earth-days-getting-longer-rotation-slows-climate-change/" target="_blank" rel="noreferrer noopener">Earth</a> by 31.5 inches. To put this into perspective, this water redistribution equates to approximately 0.24 inches of sea-level rise.



“Our study shows that among climate-related causes, the redistribution of groundwater actually has the largest impact on the drift of the rotational pole,” said Ki-Weon Seo, a geophysicist at <a href="https://en.snu.ac.kr/index.html" target="_blank" rel="noreferrer noopener">Seoul National University</a>.



So, before you dismiss the power of your water usage, remember, even the smallest actions have consequences.



<h2 class="wp-block-heading" id="h-what-exactly-is-groundwater">What exactly is groundwater?</h2>



Groundwater is the water that sits beneath the Earth's surface, filling up the spaces in soil, sand, and rock formations. 



It comes from rain and other precipitation that soaks into the ground, gradually making its way down to <a href="https://www.earth.com/news/millions-of-people-in-the-u-s-rely-on-contaminated-groundwater/" target="_blank" rel="noreferrer noopener">underground reservoirs</a> called aquifers. 



Unlike the water you see in rivers and lakes, groundwater is hidden away, acting like nature’s hidden water bank. 



It plays a crucial role in the water cycle, providing a steady supply of water even during dry spells when surface water might be scarce.



Humans rely on groundwater for a <a href="https://www.earth.com/news/groundwater-has-a-vital-role-in-ecosystem-survival/" target="_blank" rel="noreferrer noopener">variety of essential needs</a>. Many people use it as their primary source of drinking water, especially in rural areas where surface water isn't readily available. 



Farmers depend on groundwater for irrigating crops, ensuring that food production can continue even when there's not enough rain. Additionally, industries use groundwater for manufacturing processes and cooling systems. 



<h2 class="wp-block-heading" id="h-groundwater-s-role-in-earth-s-tilt">Groundwater's role in Earth's tilt</h2>



The study, which included data from 1993 through 2010, showed that pumping as much as 2,150 gigatons of groundwater has caused a shift in the Earth's tilt. 



These figures are hard to comprehend, but they reflect our intense water consumption for irrigation and human use.



We may not think about where our water goes after we use it, but most of it ends up being transported to the oceans. 



“Observing changes in Earth’s rotational pole is useful for understanding continent-scale water storage variations,” said Seo.



Linking these variations to water movement, particularly from western North America and northwestern India, shows how our everyday actions can impact the <a href="https://www.earth.com/news/earths-rotation-is-shifting-toward-a-25-hour-day/" target="_blank" rel="noreferrer noopener">Earth</a> on a global scale.



<h2 class="wp-block-heading" id="h-rotational-pole-drift">Rotational pole drift</h2>



Alongside influencing our planet's tilt and rotation, groundwater pumping paints an alarming picture for the <a href="https://www.earth.com/news/groundwater-temperatures-may-rise-due-to-climate-change/" target="_blank" rel="noreferrer noopener">consequences of climate change</a>.



“I’m very glad to find the unexplained cause of the rotation pole drift. On the other hand, as a resident of Earth and a father, I’m concerned and surprised that pumping groundwater is another source of sea-level rise,” said Seo.



These findings might seem overwhelming, especially considering the challenges we already face in combating climate change. 



However, understanding the impact of groundwater pumping on Earth's tilt and climate is a step in the right direction.



This knowledge can potentially guide conservationists toward effective strategies to mitigate further sea-level rise and other climate issues.



<h2 class="wp-block-heading" id="h-groundwater-pumping-and-polar-motion">Groundwater pumping and polar motion</h2>



The new revelations about <a href="https://www.earth.com/news/groundwater-depletion-is-accelerating-but-it-is-not-inevitable/" target="_blank" rel="noreferrer noopener">groundwater pumping</a> open new doors for our understanding of climate change and our capacity for action.



"They’ve quantified the role of groundwater pumping on polar motion, and it’s pretty significant," said Surendra Adhikari, a research scientist at NASA’s Jet Propulsion Laboratory (<a href="https://www.jpl.nasa.gov" target="_blank" rel="noreferrer noopener">JPL</a>).



The potential for change isn't exclusive to scientists and researchers. As individuals, we can adapt our habits and live more sustainably. 



This awareness around groundwater pumping's global impact should empower us to reconsider our everyday water usage.



<h2 class="wp-block-heading" id="h-future-research-and-policy-initiatives">Future research and policy initiatives </h2>



Given the significant findings of the study, future research and policy initiatives must prioritize sustainable groundwater management to mitigate its adverse impacts on Earth's rotation and climate change. 



It is imperative to balance human needs with environmental conservation, which requires innovative approaches to water usage, such as enhanced irrigation <a href="https://www.earth.com/news/our-moon-is-drifting-away-and-earth-will-never-be-the-same-without-it/" target="_blank" rel="noreferrer noopener">systems</a>, rainwater harvesting, and improved municipal water management. 



Furthermore, global cooperation among countries is essential to create comprehensive policies that address the equitable distribution and consumption of water resources. 



By encouraging multidisciplinary collaboration among geophysicists, climate scientists, policy-makers, and the public, we can develop a robust framework for more sustainable water management practices. 



Such initiatives not only hold promise for protecting Earth's rotational stability but also contribute to <a href="https://www.earth.com/news/climate-change-is-now-the-driving-force-behind-droughts/" target="_blank" rel="noreferrer noopener">broader climate change</a> mitigation efforts.



<h2 class="wp-block-heading" id="h-water-taps-tilting-the-earth">Water taps tilting the Earth</h2>



The journey towards understanding and combating climate change is a long and complex one. But in this struggle, knowledge is power. 



Understanding the impact of groundwater pumping is an invaluable tool in our arsenal.



As we look to the future, let's harness this knowledge and strive for a more sustainable world.



The study is published in the journal <a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL103509" target="_blank" rel="noreferrer noopener">Geophysical Research Letters</a>.



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Earth's rotation has tilted 31.5 inches, and humans are 100% to blame

Picture this: every time you use water from your tap,...

The alphabet holds a unique place in human history, and every new discovery about its origins can illuminate our past and challenge long-held beliefs. 



Its simplicity and adaptability transformed the way humans communicated, laying the foundation for countless languages and cultures. 



Each breakthrough brings us closer to understanding how early societies transitioned from complex symbols to accessible scripts.



<h2 class="wp-block-heading" id="h-oldest-alphabet-ever-found">Oldest alphabet ever found</h2>



A recent phenomenal finding has done just that - it’s reshaping what we know about the beginnings of alphabetic writing.



Our story begins in Syria, where a team from <a href="https://www.jhu.edu/" target="_blank" rel="noreferrer noopener">Johns Hopkins University</a> made an unexpected discovery.



The researchers unearthed finger-length clay cylinders from an ancient tomb, etched with what appears to be the oldest alphabet in known human history.



<h2 class="wp-block-heading" id="h-the-alpha-of-alphabets">The alpha of alphabets</h2>



This incredible finding dates back to approximately 2400 BCE, which is a staggering 500 years older than any other known alphabetic scripts. 



This revelation is monumental as it overthrows previously held theories about the origins of alphabets, and how they were adopted by <a href="https://www.earth.com/news/ice-cores-show-that-early-societies-were-dominated-by-climate-events/" target="_blank" rel="noreferrer noopener">early societies</a>, changing their lifestyle and course of civilization.



Glenn Schwartz is a professor of archaeology at Johns Hopkins University and one of the lead researchers who discovered the clay cylinders.



"Alphabets revolutionized writing by making it accessible to people beyond royalty and the socially elite," said Professor Schwartz. 



"Alphabetic writing changed the way people lived, how they thought, how they communicated. And this new discovery shows that people were experimenting with new <a href="https://www.earth.com/news/quantum-holograms-future-of-secure-messaging-encryption-internet/" target="_blank" rel="noreferrer noopener">communication technologies</a> much earlier and in a different location than we had imagined before now."



<h2 class="wp-block-heading" id="h-digging-deeper-into-the-past">Digging deeper into the past</h2>



The story behind this discovery unfolds at Tell Umm-el Marra, an early urban center in Western Syria. A group of archaeologists, including experts from the University of Amsterdam, embarked on a 16-year excavation journey at this site.



The fruitful outcome of their dedication was the unearthing of tombs from the Early <a href="https://www.earth.com/news/bronze-age-teeth-discovery-highlight-the-evolution-of-the-human-diet/" target="_blank" rel="noreferrer noopener">Bronze Age</a>. Among these tombs, one stood out - the final resting place of six individuals, adorned with gold and silver jewelry, cookware, a spearhead, and intact <a href="https://www.earth.com/news/baltic-pottery-reveals-ancient-culinary-traditions/" target="_blank" rel="noreferrer noopener">pottery vessels</a>.



Interestingly, found next to the pottery were four lightly baked clay cylinders, etched with what seems to be alphabetic writing. 



"The cylinders were perforated, so I’m imagining a string tethering them to another object to act as a label. Maybe they detail the contents of a vessel, or maybe where the vessel came from, or who it belonged to. Without a means to translate the writing, we can only speculate," said Professor Schwartz. 



<h2 class="wp-block-heading" id="h-a-new-chapter-for-the-alphabet">A new chapter for the alphabet?</h2>



Thanks to advanced carbon-14 dating techniques, the researchers were able to confirm the ages of the tombs, the artifacts, and the writing. 



The discovery challenges existing theories about the birth of the alphabet. It shifts our understanding of the origins of alphabetic writing, hinting at an entirely different narrative, as Professor Schwartz explained.



"Previously, scholars thought the alphabet was invented in or around Egypt sometime after 1900 BCE,” said Schwartz. "But our <a href="https://www.earth.com/news/monkey-stone-tools-look-like-early-human-artifacts/" target="_blank" rel="noreferrer noopener">artifacts</a> are older and from a different area on the map, suggesting the alphabet may have an entirely different origin story than we previously thought.”



The research highlights the importance of continuous exploration in our endeavor to comprehend our past and understand its impact on our present and future.



<h2 class="wp-block-heading" id="h-broader-impact-of-alphabetic-discoveries">Broader impact of alphabetic discoveries</h2>



The discovery of the oldest known alphabet in Syria does more than just challenge existing theories - it offers a deeper understanding of how early societies communicated and evolved.



Alphabetic writing, unlike the pictograms and logograms used in earlier writing systems, simplified communication, making it more accessible to wider populations. 



This democratization of writing could have been a pivotal factor in advancing trade, governance, and cultural exchanges among early civilizations.



The implications of the ancient alphabet extend beyond archaeology. Linguists, historians, and even technology researchers could gain insights into the roots of structured communication systems.



Understanding the origins of the alphabet also helps contextualize its influence on modern languages and scripts, illustrating its role as a building block for contemporary literacy and education.



Image Credit: Glenn Schwartz, Johns Hopkins University



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Oldest known alphabet discovered in Syria

The alphabet holds a unique place in human history, and...

A recent NASA-funded study has deepened the enigma of why life uses molecules with specific orientations.&nbsp;



Researchers have discovered that RNA - a crucial molecule thought to have potentially carried life's instructions before DNA emerged - can favor making the building blocks of proteins in either left-handed or right-handed forms. This finding could provide valuable clues to the origin of life.



<h2 class="wp-block-heading" id="h-the-puzzle-of-life-s-molecular-orientation">The puzzle of life's molecular orientation</h2>



<a href="https://www.earth.com/news/how-life-begins-egg-sperm-and-a-covert-team-of-proteins/" target="_blank" rel="noreferrer noopener">Proteins</a> are essential molecules in all living organisms, serving functions from structural components like hair to enzymes that speed up or regulate chemical reactions. 



Similar to how the 26 letters of the alphabet combine to form countless words, life uses 20 different amino acids in a vast array of arrangements to create millions of different proteins.&nbsp;



Some amino acids exist in two mirror-image forms, like left and right hands, but life predominantly uses the left-handed variety - a phenomenon known as homochirality.&nbsp;



Scientists remain puzzled about why life chose left-handed amino acids over right-handed ones, especially since life based on right-handed <a href="https://www.earth.com/news/how-did-the-building-blocks-of-life-form/" target="_blank" rel="noreferrer noopener">amino acids</a> would presumably function just as well.



<h2 class="wp-block-heading" id="h-exploring-the-rna-world-hypothesis">Exploring the “RNA world” hypothesis</h2>



DNA holds the instructions for building and maintaining living organisms but is complex and specialized. It “subcontracts” the work of reading instructions to RNA molecules and building proteins to ribosomes.&nbsp;



Due to DNA's complexity, scientists theorize that a simpler molecule preceded it billions of years ago during early life evolution. RNA, capable of both storing genetic information and building proteins, is a leading candidate, giving rise to the “<a href="https://www.earth.com/news/rna-world-unraveling-mysteries-life-origin/" target="_blank" rel="noreferrer noopener">RNA world</a>” hypothesis.



If this proposition is correct, perhaps something about RNA caused it to favor building left-handed proteins over right-handed ones.&nbsp;



However, the new research did not support this idea, deepening the mystery of why life favored left-handed proteins.



<h2 class="wp-block-heading" id="h-the-role-of-evolutionary-pressures-nbsp">The role of evolutionary pressures&nbsp;</h2>



The experiment tested RNA molecules that act like enzymes to build proteins, called ribozymes.&nbsp;



“The experiment demonstrated that ribozymes can favor either left- or right-handed amino acids, indicating that RNA worlds, in general, would not necessarily have a strong bias for the form of amino acids we observe in biology now,” said corresponding author Irene Chen, a scientist at the <a href="https://www.ucla.edu/" target="_blank" rel="noreferrer noopener">University of California, Los Angeles</a> (UCLA) Samueli School of Engineering.



In simulating potential early-Earth conditions of the RNA world, researchers incubated a solution containing ribozymes and amino acid precursors to observe the relative percentages of right-handed and left-handed phenylalanine amino acids produced.&nbsp;



They tested 15 different ribozyme combinations and found that ribozymes can favor either left-handed or right-handed amino acids. This lack of inherent preference challenges the notion that early life was predisposed to select left-handed amino acids, which dominate in modern proteins.



“The findings suggest that life’s eventual homochirality might not be a result of chemical determinism but could have emerged through later evolutionary pressures,” said co-author Alberto Vázquez-Salazar, a UCLA postdoctoral scholar and member of Chen’s research group.



<h2 class="wp-block-heading" id="h-implications-for-understanding-life-s-origins">Implications for understanding life's origins</h2>



Earth's prebiotic history predates the oldest fossil records, which have been erased by plate tectonics - the slow movement of Earth's crust.&nbsp;



During that time, the planet was likely bombarded by <a href="https://www.earth.com/news/what-would-happen-small-asteroid-hit-earth-nasa-ai-simulation-found-out/" target="_blank" rel="noreferrer noopener">asteroids</a>, which may have delivered some of life's building blocks, such as amino acids. Alongside chemical experiments, other origin-of-life researchers are examining molecular evidence from meteorites and asteroids.



Study co-author Jason Dworkin is a senior scientist for astrobiology at NASA’s <a href="https://www.nasa.gov/goddard/" target="_blank" rel="noreferrer noopener">Goddard Space Flight Center</a> in Greenbelt, Maryland, and director of <a href="https://science.gsfc.nasa.gov/691/analytical/" target="_blank" rel="noreferrer noopener">Goddard’s Astrobiology Analytical Laboratory</a>.



Dworkin is also the project scientist on NASA’s OSIRIS-REx mission - which extracted samples from the asteroid Bennu and delivered them to Earth.



“Understanding the chemical properties of life helps us know what to look for in our search for life across the solar system,” said Dworkin.&nbsp;



“We are analyzing OSIRIS-REx samples for the chirality (handedness) of individual amino acids, and in the future, samples from Mars will also be tested in laboratories for evidence of life including ribozymes and proteins.”



<h2 class="wp-block-heading" id="h-the-search-for-life-s-molecular-secrets">The search for life's molecular secrets</h2>



This discovery adds complexity to our understanding of life's molecular orientations, suggesting that homochirality might not have resulted from initial chemical conditions but could have developed due to evolutionary factors.&nbsp;



The findings prompt further research into the <a href="https://www.earth.com/news/new-clues-about-the-origins-of-life-on-earth/" target="_blank" rel="noreferrer noopener">origins of life</a> and may influence how scientists search for life beyond Earth.



The study is published in the journal <a href="https://www.nature.com/articles/s41467-024-52362-x" target="_blank" rel="noreferrer noopener">Nature Communications</a>.



Image Credit: NASA



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Life’s molecular orientation: New discovery deepens the mystery

A recent NASA-funded study has deepened the enigma of why...

For the past two months, a small asteroid named 2024 PT5 has been keeping Earth company, acting as a temporary "mini-moon." This week, it's set to drift away, pulled by the stronger gravity of the sun.



Richard Binzel, an astronomer at the Massachusetts Institute of Technology (<a href="https://www.mit.edu" target="_blank" rel="noreferrer noopener">MIT</a>), has been following these kinds of celestial visitors for years. 



"These happen more often than we think, but they're small and tough to spot," Binzel explained. "Only lately have our telescopes become powerful enough to catch them regularly."



In August, a team of astronomers from the <a href="https://www.ucm.es/english" target="_blank" rel="noreferrer noopener">Complutense University</a> of Madrid detected 2024 PT5 using a powerful telescope in Sutherland, South Africa. 



They weren't the only ones watching; NASA's Asteroid Terrestrial-impact Last Alert System (<a href="https://fallingstar.com/home.php" target="_blank" rel="noreferrer noopener">ATLAS</a>) at Haleakala Observatory in Hawaii first noticed the asteroid on August 7, 2024.



This discovery has excited astronomers, offering a rare chance to learn more about <a href="https://www.earth.com/news/nasa-test-simulation-shows-earth-not-prepared-prevent-large-asteroid-strike/" target="_blank" rel="noreferrer noopener">near-Earth objects</a>. But what exactly is 2024 PT5, and why does it matter?



<h2 class="wp-block-heading" id="h-2024-pt5-tiny-asteroid-big-role">2024 PT5: Tiny asteroid, big role</h2>



<a href="https://www.earth.com/news/its-official-earth-now-has-two-moons-captured-asteroid-2024-pt5/" target="_blank" rel="noreferrer noopener">Earth occasionally captures small asteroids</a> like 2024 PT5, placing them into temporary orbits around our planet. 



While most asteroids orbit the sun on regular paths, some come close enough for Earth's gravity to grab them for a brief visit. 



These cosmic hitchhikers stay with us for a short time -- typically a few weeks or months -- before breaking free and continuing their journey around the sun.



"All mini-moons are unique in their own way," said William Blackmore, Planetarium Director and Astronomy Instructor at <a href="https://www.mhcc.edu/" target="_blank" rel="noreferrer noopener">Mt. Hood Community College</a>. "This one isn't different from others except that it's the most recent."



<h2 class="wp-block-heading" id="h-comparing-2024-pt5-to-the-moon">Comparing 2024 PT5 to the Moon</h2>



To put things into perspective, 2024 PT5 is about 37 feet across. In contrast, <a href="https://www.earth.com/news/how-did-earth-get-its-moon-a-new-theory-has-emerged/" target="_blank" rel="noreferrer noopener">Earth's main moon</a> stretches a massive 2,159 miles in diameter. 



That makes our moon over 300,000 times wider than this tiny asteroid. Knowing it's up there is pretty exciting, even if we can't see it without some serious telescopic equipment.



"These temporary captures are natural cosmic laboratories," Binzel mentioned. "They help us understand the small bodies that <a href="https://www.earth.com/news/27500-hidden-near-earth-asteroids-discovered-using-google-cloud/" target="_blank" rel="noreferrer noopener">come close to Earth</a> and could be important for future space missions."



<h2 class="wp-block-heading" id="h-how-2024-pt5-became-a-mini-moon">How 2024 PT5 became a mini-moon</h2>



Understanding how 2024 PT5 became Earth's temporary companion involves a bit of <a href="https://www.earth.com/news/finding-order-in-the-chaos-of-the-three-body-problem/" target="_blank" rel="noreferrer noopener">orbital mechanics</a>. 



Blackmore explained, "It's moving along with us in our orbit around the sun. It's part of a group of asteroids called the Arjuna asteroids, which move at about the same pace as Earth."



He added an analogy to make it clearer: 



"Imagine a skateboarder dropping into a skate park. They ride the curves, adding energy as they go. That's like the asteroid getting caught in <a href="https://www.earth.com/news/dart-mission-debris-will-create-a-human-made-meteor-shower/" target="_blank" rel="noreferrer noopener">Earth's gravitational field</a>, riding the curve before moving on."



<h2 class="wp-block-heading" id="h-spotting-mini-moons-like-2024-pt5">Spotting mini-moons like 2024 PT5</h2>



Catching sight of mini-moons is no easy task. 



They're incredibly small and faint, often just a few dozen feet across, which means they don't reflect much sunlight. This makes them nearly invisible against the dark backdrop of space.



Astronomers use powerful telescopes equipped with <a href="https://www.earth.com/news/gaia-reveals-moons-around-hundreds-of-asteroids/" target="_blank" rel="noreferrer noopener">sensitive detectors and smart software</a> to find them. 



Projects like the ATLAS system scan the skies every night, searching for any objects that weren't there before. 



When they spot something moving in a way that suggests it's close to Earth, they alert other astronomers to help confirm the find.



"It's a collaborative effort," Blackmore said. "Combining technology and teamwork helps us spot these elusive cosmic visitors."



<h2 class="wp-block-heading" id="h-why-does-any-of-this-matter">Why does any of this matter?</h2>



While 2024 PT5 doesn't pose any threat to Earth, <a href="https://www.earth.com/news/is-there-a-fifth-force-of-nature-asteroids-provide-new-clues/" target="_blank" rel="noreferrer noopener">studying it is crucial</a>. 



"It's important to analyze how it moves and interacts with Earth's gravitational pull," Blackmore noted. "This helps us refine our techniques for tracking objects that could cross our path again."



Another expert, Todd, highlighted the practical applications of this knowledge. 



"We need to understand how to intercept an asteroid at a distance and change its direction," he said. "This could be vital in <a href="https://www.earth.com/news/nasa-dart-mission-proves-humanity-can-be-saved-from-asteroid-collision/" target="_blank" rel="noreferrer noopener">preventing potential impacts</a> in the future."



<h2 class="wp-block-heading" id="h-challenges-in-observing-2024-pt5">Challenges in observing 2024 PT5</h2>



For those eager to see this mini-moon, experts warn that it would be extremely difficult. 



"You'd need a telescope with a diameter of at least 30 inches," Blackmore mentioned. "That's beyond what most amateur astronomers have."



Todd agreed, adding, "It won't be visible to the naked eye. Being 33 feet wide and so far away, you'd need a very large telescope."



<h2 class="wp-block-heading" id="h-inspiration-for-future-space-missions">Inspiration for future space missions</h2>



Blackmore envisioned future missions that could take advantage of these temporary visitors. 



"It would be fascinating if we had missions ready to send small satellites or probes to these objects when they come close," he mused. "Imagine building a network of sensors or cameras traveling along with us, like space webcams."



Todd also saw potential in <a href="https://www.earth.com/news/asteroid-named-psyche-is-worth-10000-quadrillion-for-whoever-can-extract-minerals/" target="_blank" rel="noreferrer noopener">asteroid mining</a> and scientific discovery. 



"There might be materials on these asteroids that we can't find on Earth," he said. "They could solve problems in medicine or technology. But we need to weigh the benefits carefully."



<h2 class="wp-block-heading" id="h-brief-visit-with-a-lasting-impact">Brief visit with a lasting impact</h2>



The short stay of asteroid 2024 PT5 serves as a reminder of the dynamic nature of our solar system. While it didn't stick around long, its presence offered valuable opportunities for learning and exploration.



As technology advances, we'll likely spot more of these mini-moons. Each one gives us a chance to understand our cosmic environment better and prepare for the future.



The full study was published in the&nbsp;<a href="https://iopscience.iop.org/article/10.3847/2515-5172/ad781f" target="_blank" rel="noreferrer noopener">journal IOPscience</a>.



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Earth has lost its mini-moon, which may have come from our main Moon

For the past two months, a small asteroid named 2024...

In the world of science, we often focus on what we see. We examine what is visible, tangible, and easy to perceive with our own two eyes. But what about the sounds of the past - more specifically, the sounds of dinosaurs?



How can we possibly know what a creature from millions of years ago sounded like? Well, this can be answered using paleoacoustics.



Before we dive into the how, let's take a moment to consider what we are talking about. Picture the Parasaurolophus - a duck-billed <a href="https://www.earth.com/news/rare-triassic-fossil-gondwanax-paraisensis-may-rewrite-history-of-dinosaurs/" target="_blank" rel="noreferrer noopener">dinosaur</a> with a unique crest.



This huge creature, standing around 16 feet tall and weighing between 6,000 to 8,000 pounds, dominated the landscapes some 70 million to 80 million years ago. It has been named in many science fiction films and dinosaur-themed games.



<h2 class="wp-block-heading" id="h-decoding-dinosaur-sounds">Decoding dinosaur sounds</h2>



Sound is essentially vibrations traveling through the air. These vibrations hit our eardrums, get converted into electrical signals, and are interpreted by our brains. 



But for creatures like the Parasaurolophus, with unique physical attributes, their sounds would have been produced and resonated differently.



The starting point to understanding how the Parasaurolophus might have sounded is through mathematical modeling. 



Sounds a bit strange, doesn't it? But it's not just number crunching. Math is a universal language that is able to represent complex physical phenomena in a way that can be computed, simulated, and even visualized.



<h2 class="wp-block-heading" id="h-exploring-what-dinosaurs-sounded-like">Exploring what dinosaurs sounded like</h2>



Enter our scientist, Hongjun Lin, a researcher at <a href="https://www.nyu.edu" target="_blank" rel="noreferrer noopener">New York University</a> who is on a mission to decode the sounds of the past.



He presented his research on the acoustic characteristics of a physical model of the Parasaurolophus' crest at the 187th Meeting of the Acoustical Society of America in November 2024.



"I've been fascinated by giant animals ever since I was a kid. I'd spend hours reading books, watching movies, and imagining what it would be like if <a href="https://www.earth.com/news/carnian-pluvial-episode-one-million-years-of-rain-triggered-dinosaur-takeover-of-earth/" target="_blank" rel="noreferrer noopener">dinosaurs</a> were still around today," said Lin.



But a realization in college sparked a new direction for Lin's passion. "It wasn't until college that I realized the sounds we hear in movies and shows - while mesmerizing - are completely fabricated using sounds from modern animals."



"That's when I decided to dive deeper and explore what dinosaurs might have actually sounded like."



<h2 class="wp-block-heading" id="h-creating-dinosaur-sounds">Creating dinosaur sounds</h2>



To bring mathematics into the tangible realm, Lin created a physical setup - affectionately named the "Linophone." It is made of tubes that resemble the resonance chambers used in musical instruments.



This theoretical model, despite its simplicity, was pivotal in approximating what was happening acoustically inside the Parasaurolophus' crest.



The Linophone isn’t a perfect replica of the Parasaurolophus, but it's a stepping stone - a means to verify the mathematical framework.



Lin's initial findings suggest that the Parasaurolophus' crest was used for resonance, a phenomenon not unfamiliar to us - it’s the same principle that gives birds their unique songs.



<h2 class="wp-block-heading" id="h-where-do-we-go-from-here">Where do we go from here?</h2>



The journey has just begun. Lin's research is far from complete, and the mathematical model is still a work in progress. 



But the implications of this study extend beyond just dinosaurs. This research paves the way for studying animals with similar vocal structures, leading to a deeper understanding of Earth's ancient inhabitants.



The idea doesn't stop there. Lin shares his plan for the future - an accessible plug-in for people to experiment with and even incorporate dinosaur sounds into music. Can you imagine rock and roll with a dash of Parasaurolophus?



"Once we have a working model, we'll move toward using&nbsp;fossil&nbsp;scans," Lin said. "My ultimate goal is to re-create the sound of the Parasaurolophus."



<h2 class="wp-block-heading" id="h-understanding-how-dinosaurs-communicated">Understanding how dinosaurs communicated</h2>



Understanding how dinosaurs communicated provides insights into their social structures and behaviors. The Parasaurolophus, with its crest capable of producing distinctive sounds, is a fascinating subject to explore these <a href="https://www.earth.com/news/qunkasaura-pintiquiniestra-new-sauropod-dinosaur-discovered-in-spain/" target="_blank" rel="noreferrer noopener">dynamics</a>. 



This anatomical feature may have allowed it to generate low-frequency calls, which could travel across long distances - a valuable adaptation for herd communication over expansive territories.



Such communication would have played a pivotal role in coordinating movement, warning of approaching predators, or even engaging in mating rituals. 



As research progresses, scientists hope to unravel whether these sounds were unique to each species, locality, or even individual, offering a more nuanced picture of dinosaur life.



<h2 class="wp-block-heading" id="h-broader-implications-of-the-research">Broader implications of the research </h2>



While Lin's work has primarily focused on recreating the sounds of the Parasaurolophus, the broader implications of paleoacoustic research are vast. 



By refining techniques and understanding, scientists can apply these methods to other <a href="https://www.earth.com/news/nadir-crater-second-massive-asteroid-impact-discovered-dinosaur-extinction/" target="_blank" rel="noreferrer noopener">prehistoric animals</a>, providing a comprehensive soundtrack of the past. These innovations bolster educational tools, allowing students and enthusiasts worldwide to engage more deeply with Earth's history through sound. 



The field also enriches other disciplines, such as paleontology, biology, and acoustics - promoting interdisciplinary collaboration and innovative thinking.



As the boundaries of current research continue to expand, so too does our capacity to connect with the ancient world, transforming silent fossils into a symphony of prehistory.



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What did dinosaurs sound like?

In the world of science, we often focus on what...