On September 29, 2024, something unusual happened in our cosmic neighborhood. Earth captured a tiny asteroid named 2024 PT5, turning it into a temporary mini-moon. 



That's right... as of today, November 2, 2024, <a href="https://www.earth.com/news/its-official-earth-now-has-two-moons-captured-asteroid-2024-pt5/" target="_blank" rel="noreferrer noopener">Earth has two moons</a>.



Richard Binzel, an astronomer at the Massachusetts Institute of Technology (<a href="https://www.mit.edu" target="_blank" rel="noreferrer noopener">MIT</a>), shed some light on these fleeting celestial companions.



"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."



Back 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 the small space rock using a powerful telescope in Sutherland, South Africa.



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



This discovery sparked excitement among astronomers, offering a 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>.



<h2 class="wp-block-heading" id="h-what-exactly-is-2024-pt5">What exactly is 2024 PT5?</h2>



Earth occasionally captures small asteroids like 2024 PT5, placing them into temporary orbits around our planet. 



While most asteroids circle the sun on their regular paths, some venture close enough for <a href="https://www.earth.com/news/earth-global-electric-field-discovered-equally-important-gravity-magnetic-fields/" target="_blank" rel="noreferrer noopener">Earth's gravity</a> to snatch them up for a brief visit.



These cosmic visitors only stay in Earth's orbit for a short time -- typically a few weeks or months -- before breaking free and resuming their solar journey.



Each mini-moon gives scientists a rare opportunity to examine <a href="https://www.earth.com/news/27500-hidden-near-earth-asteroids-discovered-using-google-cloud/" target="_blank" rel="noreferrer noopener">near-Earth asteroids</a> up close, revealing valuable insights about our solar system's mechanics.



So, what makes this asteroid special, aside from the fact that new technology and the internet made it famous? 



William Blackmore, Planetarium Director and Astronomy Instructor at <a href="https://www.mhcc.edu/" target="_blank" rel="noreferrer noopener">Mt. Hood Community College</a>, offered his thoughts.



"All mini-moons are unique in their own way," Blackmore explained. "This one isn't different from others except that it's the most recent.”



2024 PT5 will be around for about two more weeks, probably until mid-November.



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



Let's compare our moon to this new mini-moon: 2024 PT5 is only about 37 feet across, while our familiar moon stretches a massive 2,159 miles in diameter. That makes <a href="https://www.earth.com/news/how-did-earth-get-its-moon-a-new-theory-has-emerged/" target="_blank" rel="noreferrer noopener">our moon</a> over 300,000 times wider than this tiny asteroid.



Knowing it’s up there is pretty exciting, even though we can't see it for ourselves without an invitation to a huge Earth telescope installation.



“These temporary captures are natural cosmic laboratories,” Binzel mentioned. “They help us understand the small bodies that come close to Earth and could be important for future space missions.”



<h2 class="wp-block-heading" id="h-how-asteroid-2024-pt5-became-famous">How Asteroid 2024 PT5 became famous</h2>



Understanding how 2024 PT5 became Earth's temporary moon 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 interesting analogy: "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-significance-of-spotting-mini-moons">Significance of spotting mini-moons</h2>



Spotting mini-moons is tough because they're incredibly small and faint. These tiny asteroids are often just a few dozen feet across, which means they don't reflect much sunlight. That makes them nearly invisible against the dark backdrop of space.



Plus, they're zipping around at high speeds and don't hang around for long, so by the time we point our telescopes their way, they might already be gone. 



It's like trying to catch a glimpse of a firefly from miles away -- you need the right conditions and equipment.



<h2 class="wp-block-heading" id="h-modern-high-tech-telescopes">Modern high-tech telescopes</h2>



Astronomers find them by using 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>.



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, combining technology and teamwork to spot these elusive cosmic visitors.



Knowing more about these temporary moons helps us prepare for any potential asteroid threats and opens up possibilities for mining resources from near-Earth objects.



<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, both experts warned 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-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 said. "This helps us refine our techniques for tracking objects that could cross our path again."



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



To sum it all up, the brief visit of asteroid 2024 PT5 serves as a reminder of the dynamic <a href="https://www.earth.com/news/building-blocks-of-life-found-in-asteroids-were-formed-in-cold-regions-of-space/" target="_blank" rel="noreferrer noopener">nature of our solar system</a>. 



While it won't be with us for long -- just a couple more weeks -- its presence offers 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. 



So even though you'll never see it, you might want to spare a moment of your time and stop to appreciate 2024 PT5 while you still can.



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's second moon, a mini-moon, will drift away in a few days and never return

On September 29, 2024, something unusual happened in our cosmic neighborhood. Earth captured a tiny asteroid named 2024 PT5, turning it into a temporary mini-moon. That's right... as of today, November 2, 2024, Earth has two moons. Richard Binzel, an astronomer at the Massachusetts Institute of Technology (MIT), shed some light on these fleeting celestial companions. "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." Back in August,...

After certain U.S. states introduced <a href="https://www.earth.com/news/lockdowns-disrupted-work-leisure-balance-especially-for-moms/">lockdowns</a> and stay-at-home orders in March, 2020, there were anecdotal reports that people bought and consumed more alcohol than usual. However, data-driven research into whether this was the case produced mixed results.



Scientists at the <a href="http://www.buffalo.edu/">University of Buffalo</a> set out to clarify this situation by analyzing data on sales of alcohol in 16 U.S. states during the first few months of the COVID-19 pandemic. They used monthly sales figures reported by the <a href="https://www.niaaa.nih.gov/">NIAAA</a> for the period from March to June 2020, and compared these with sales in the same period in 2018 and 2019. In some states (but not all), separate sales figures were available for wine, beer and spirits.&nbsp;



In addition, the researchers used anonymized mobility data from over 45 million smart mobile devices (mostly smartphones) indicating people’s visits to businesses where alcohol is sold. In this way they could assess any changes in the relationship between alcohol sales and people’s visits to businesses that sell alcohol.&nbsp;



“Anonymized human mobility data and geospatial analysis help us understand how people’s visiting behavior to alcohol outlets changed during the stay-at-home period of COVID-19, and how such behavior change varied across different geographic regions,” says Yingjie Hu, PhD, an assistant professor of geography in the UB College of Arts and Sciences.



“Understanding how alcohol purchase behavior is changed by events such as COVID is important because heavy alcohol use is known to be associated with numerous social problems, especially within the home,” says Bria Quigley, PhD, research assistant professor of medicine in the Jacobs School of Medicine and Biomedical Sciences at UB and the UB Clinical and Research Institute on Addictions.



The results of the analyses showed that the overall sales of spirits and wine increased in the early months of the pandemic – by as much as 20–40 percent in some states. The sales of beer declined overall, compared to sales during the same period in previous years. Meanwhile, people’s visits to bars and pubs declined, but visits to liquor stores increased.



The trends did vary significantly between states. For example, while beer sales decreased in most states, they increased in Kansas, Arkansas and Texas. Furthermore, Texas, Kentucky and Virginia showed sustained increases in their sales of both spirits and wine, which the authors suggest “can be alarming signals for problematic alcohol use.”



“If data can provide information about geographic areas in which alcohol use increases during certain types of events such as during severe weather, high unemployment, or events such as the COVID pandemic, this information can be useful to help prepare law enforcement, medical professionals and substance use disorder treatment providers to address alcohol-related issues associated with such times,” said Quigley.



Machine-learning assessments in the study point to a significant shift in the relationship between alcohol sales data and visits to various alcohol outlets. The researchers suggest the possibility that people turned increasingly to online alcohol purchases or to panic buying of spirits and wine. More research will be necessary to understand the exact changes in people’s purchasing behavior.&nbsp;



The research team notes that the study has some limitations: For example, many states were not included in the NIAAA dataset, and the human mobility data was not able to capture sales at places such as grocery stores, where sales of alcohol are mixed with sales of other items.&nbsp;



Nevertheless, these results provide insights into the potential effects of lockdown policies on alcohol use and could inform future public health policies to address alcohol-related social issues, the researchers say.



The results of this study were published today in the open-access journal&nbsp;<a href="https://plos.org/">PLOS ONE</a>.



---



By <a href="mailto:bosman@truewan.co.za">Alison Bosman</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Many turned to alcohol during early pandemic lockdown

After certain U.S. states introduced lockdowns and stay-at-home orders in...

Meditation used to be considered by many people as reserved for religious and spiritual practice, but modern digital apps have brought the act to the mainstream. Not only has it become significantly more popular, but a new study has concluded that people who meditate regularly see a huge range of <a href="https://www.earth.com/news/outdoor-exercise-improves-mental-health/">mental health</a> benefits.



A new study conducted by <a href="https://onepoll.com/">OnePoll</a> on behalf of <a href="https://healthy.kaiserpermanente.org/">Kaiser Permanente</a> has found that throughout the COVID-19 pandemic, over three-quarters of Americans have sought to support their mental health through digital tools. Among the 2,003 survey participants, 57 percent said they meditated regularly as part of their self-care routine, at an average of two hours per week.



In addition to meditation, 42 percent of respondents consumed online videos and streaming services concerning self-care, with a third using generalized mental health apps and a third using hobby-focused online programs such as yoga and art apps.



Survey respondents who meditated regularly reported several benefits. Among these participants, 42 percent reported a better sex life, 51 percent claimed to have better emotional control, 57 percent experienced improved sleep quality, and 60 percent had better clarity and focus.&nbsp;



Around half of the participants also stated that they had sought out ways to manage substance abuse issues, with 52 percent of these individuals reporting that meditation helped them through the struggle.



The increase in uptake of digital self-help tools is a result of various increased life stresses from the pandemic. However, three issues arose as most prevalent - 40 percent of users reported financial stress as their primary concern, 39 percent cited health concerns, and 37 percent noted difficulties with family and friends.



“The events of the past several years, including the COVID-19 pandemic, have clearly taken a toll on our emotional well-being,” said Cosette Taillac, vice president for Mental Health and Wellness at Kaiser Permanente. “Digital self-care tools for mindfulness, meditation, and cognitive behavioral therapy can help boost resilience and offer useful and accessible self-help tools for people experiencing emotional distress.”



Despite the benefits of digital meditation apps being clear, almost half of the survey participants still expressed skepticism. A quarter of respondents were put off by the digital tools in fear of practicing meditation and mindfulness incorrectly, and nearly half thought the tools were overly complicated or would not be as effective as real-life solutions.



“Digital self-care tools are not meant to take the place of care from a skilled mental health clinician,” said Taillac. “But evidence-based apps can complement that care and support overall emotional well-being. That’s especially true when the app has been vetted and recommended by a trusted health care provider, making it more likely that patients will feel comfortable using the resource.”



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By <a href="mailto:calumvaughan05@gmail.com">Calum Vaughan</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Meditation may lead to better focus, sleep, and sex life

Meditation used to be considered by many people as reserved...

The biotech company <a href="https://www.modernatx.com/">Moderna</a>, which created a highly efficient mRNA vaccine against <a href="https://www.earth.com/news/viruses-related-to-sars-cov-2-could-cause-future-pandemics/">SARS-CoV-2</a> last year, has recently <a href="https://investors.modernatx.com/news/news-details/2021/Moderna-Announces-Positive-Interim-Phase-1-Data-for-mRNA-Flu-Vaccine-and-Provides-Program-Update/default.aspx">announced</a> that their new flu vaccine appeared to be safe and efficient after Phase 1 trials.



"Even before the COVID-19&nbsp;pandemic, approximately three million people died each year due to respiratory infections, and many more are hospitalized or become ill as a result of these&nbsp;viruses,” said Stéphane Bancel, the Chief Executive Officer of Moderna.&nbsp;



Thus, influenza vaccination can be a powerful weapon against a class of dangerous pathogens. The current anti-flu vaccines are based on inactivated viruses cultivated in chicken eggs, and usually have an efficacy ranging from 40 to 60 percent. The manufacturing process is quite long, since virus strains need to be selected six to nine months before the development and intended use of the vaccines.



By contrast, the new mRNA technology, which provokes an immune response by delivering to human cells genetic molecules that contain the code for key parts of a pathogen, can significantly accelerate immunization development and production and heighten vaccine efficacy.&nbsp;



Moreover, several mRNA molecules encoding for different viral strains can be delivered in the same shot. Moderna’s experimental flu shot is “quadrivalent,” targeting four strains of flu (A/H1N1, A/H3N2, B/Yamagata and B/Victoria). In the future, Moderna aims to develop a “pan-respiratory booster,” targeting not only the circulating flu strains, but also SARS-CoV-2 variants, and the respiratory syncytial virus (RSV).



The current anti-flu vaccine was tested on 180 people of different ages, at various dosage levels, and found to be safe and efficient. “The positive interim results from our Phase 1 quadrivalent flu vaccine candidate, mRNA-1010, are an important milestone,” said Bancel.&nbsp;



“It is encouraging to see that participants in the study who received the 50 µg dose, including older adults, achieved robust increases in geometric mean antibody titers against H1N1 and H3N2, the strains responsible for the vast majority of morbidity and mortality in this age group We believe our mRNA platform is well-positioned to address the significant unmet need in seasonal flu as evidenced by our new beyond quadrivalent candidates, mRNA-1011 and mRNA-1012, which we believe will expand strain coverage and provide more options for public health officials.”&nbsp;



The side effects of the vaccines appeared mild, and occurred more often in younger rather than older adults. The most common ones included pain at the injection site, headaches, muscle and joint aches, and tiredness.&nbsp;



The results of the second stage of the trials, involving 500 participants, are expected in the first part of 2022.&nbsp;



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Experimental mRNA flu vaccine shows promising results

The biotech company Moderna, which created a highly efficient mRNA...

The Thwaites glacier is one of the fastest changing glaciers in <a href="https://www.earth.com/news/wildfires-were-common-in-ancient-antarctica/">Antarctica</a>, contributing as much as four percent of global <a href="https://www.earth.com/news/sea-levels-are-rising-at-an-alarming-rate/">sea level rise</a> today. The huge, Florida-sized glacier - also known as the "Doomsday glacier” due to its recent tendency to disintegrate - faces dramatic changes in the next decade. It is already dumping 50 billion ton of ice into the ocean each year.



Recently, scientists have discovered several large, worrying cracks in the ice shelf holding back this glacier, suggesting that this crucial buttress against sea level rise could completely shatter within the next five years.



"There is going to be dramatic change in the front of the glacier, probably in less than a decade. Both published and unpublished studies point in that direction," reported glaciologist Ted Scambos, the US lead coordinator of the&nbsp;<a href="https://thwaitesglacier.org/">International Thwaites Glacier Collaboration (ITGC)</a>. "This will accelerate the pace (of Thwaites) and widen, effectively, the dangerous part of the glacier,"



According to Erin Pettit, a glaciologist at the <a href="https://oregonstate.edu/">Oregon State University</a>, the weak spots that the scientists have recently discovered are like cracks in a windshield: with just one more blow, they could spiderweb across the entire ice shelf surface.&nbsp;



“You’re like, I should get a new windshield. And one day, bang - there are a million other cracks there,” she said. “This eastern ice shelf is likely to shatter into hundreds of icebergs. Suddenly the whole thing would collapse.”&nbsp;



Although the shattering of the Doomsday glacier will not immediately accelerate global sea level rise, it will not take much long until its effects will be strongly felt, and millions of people living in coastal areas will be endangered.&nbsp;



Moreover, since the Thwaites glacier is situated in a deep basin, if it collapses, neighboring glaciers could follow, ultimately leading to the loss of the entire West Antarctic Ice Sheet. “That would be a global change,” said Robert DeConto, a glaciologist at the <a href="https://www.umass.edu/">University of Massachusetts, Amherst</a>. “Our coastlines will look different from space.”&nbsp;



During the following year, scientists will continue investigating the current status of the glacier by sending a tubby yellow submarine known as "Boaty McBoatface" to dive under Thwaites' floating ice in order to gather data on factors that influence melting, such as water temperature, current direction, and turbulence.



The new findings regarding the status of the Thwaites glacier are presented this week at the <a href="https://www.agu.org/Fall-Meeting">American Geophysical Union Fall Meeting in New Orleans</a>.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

The Doomsday glacier is heading for dramatic change

The Thwaites glacier is one of the fastest changing glaciers...

Global warming is dramatically changing the natural <a href="https://www.earth.com/news/melting-glaciers-will-create-large-habitats-for-pacific-salmon/">habitats</a> of species across the entire world, and it is essential that scientists understand how different species adapt in order to help protect them. An example of an affected yet adaptable species is the ocean-dwelling bottlenose dolphin.&nbsp;



Researchers from the <a href="https://www.ntnu.edu/">Norwegian University of Science and Technology</a> (NTNU) Science Museum are investigating exactly how bottlenose dolphins adapt so well to changes in their environment.



Bottlenose dolphins were chosen as subjects of the study as they are spread throughout both the north and the south of the equator across both open oceans and coasts. They can survive on a variety of different fish, squid, and crustaceans. Such a broad range of habitats and diets makes the dolphins excellent candidates for rapid adaptation.&nbsp;



Different locations and diets result in greater genetic variation among the dolphins. The research team theorized that the process of natural selection across advantageous genes has promoted excellent adaptation abilities. Until now, however, it has been puzzling as to why bottlenose dolphins are better than other dolphin species at adapting to survive around coastal habitats.



“We discovered the solution in the ancestral genes that the dolphins have. We found that genes that provide benefits for coastal dolphins also appear as genetic variations in dolphins that live far out to sea,” said Marie Louis at the University of St. Andrews. “These ancient genes are not only found in dolphins along the coast, although they are far more common there. When necessary, open ocean dolphins have the genetic potential to adapt to coastal life.”



Ultimately, this means that the ancestral genes of bottlenose dolphins have been triggered and repeated throughout many occasions and places across the history of different groups of the species. “In other words, a species that lives in groups can benefit from both the ecological possibilities in the environment and the genetic variation to adapt to a new habitat over and over again,” explained Louis.



As a result, dolphin species may hold genes essential for survival that are not currently used, yet will be useful for habitat changes hundreds or thousands of years later.&nbsp;



"Through the generations, these beneficial gene variants came to dominate in the coastal dolphins, so much so that they became clearly genetically different from the ones in the open ocean," said Louis.



The study is published in the journal <a href="https://www.science.org/journal/sciadv">Science Advances</a>.



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By <a href="mailto:calumvaughan05@gmail.com">Calum Vaughan</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Dolphins have genetically mastered the art of adapting

Global warming is dramatically changing the natural habitats of species...

Currently, models of alcohol use and misuse are mostly derived from research on men,but it seems that these models may not always be applicable to women. New research has found that exposure to <a href="https://www.earth.com/news/stress-makes-lifes-clock-tick-faster/">stress</a> can lead women to consume more alcohol than intended, while stress alone does not have the same effect on the consumption of alcohol by men.



“Some people can intend to have one or two alcoholic beverages and stop drinking, but other people just keep going. This impaired control over drinking is one of the earliest indicators of alcohol use disorders, and we know stress contributes to both impaired control over drinking and dysregulated drinking. The role of stress in impaired control over drinking is understudied, especially in women,” said study lead author Julie Patock-Peckham, assistant research professor at Arizona State University.



The study took place in a laboratory that was set up to resemble a bar. There was a bar tender, bar stools, a choice of alcoholic beverages and lively bar-room conversation. The participants (105 men and 105 women) were randomly divided into two groups, one that experienced a stressful situation and the other that experienced a non-stressful situation.



Next, half of the participants received an alcoholic drink that was equivalent to three cocktails, and the other half received three non-alcoholic drinks. After that, all participants had unrestricted access to alcoholic drinks from the bar for 90 minutes.&nbsp;



The researchers monitored alcohol consumption by counting the number of alcoholic beverages consumed, and also by measuring breath blood alcohol content (BAC). Their aim was to determine whether stress, the initial drink or the combination of the two most accurately predicted how much alcohol participants would consume.&nbsp;



“We know that both genes and the environment play a role in problematic drinking. We can’t do anything about the genes, but we can intervene with the environment. Stress and impaired control over drinking are tightly connected, and because stress is something we can manipulate, we tested whether stressors cause dysregulated drinking,” said Patock-Peckham, who leads the&nbsp;<a href="https://psychology.clas.asu.edu/research/labs/social-addictions-impulse-lab">Social Addictions Impulse Lab</a>&nbsp;at ASU.



The results showed that participants exposed to stress engaged in heavier drinking, irrespective of their gender. However, men who experienced stress and then received an initial alcoholic drink consumed more alcohol than men who experienced stress but received a placebo (non-alcoholic drink) to start with.&nbsp;



In the case of women, whether the first drink was alcoholic or not did not make a difference: experiencing stress led to heavy drinking.



“That women just needed the stress but men needed the push of already having alcohol on board shows how important this type of research is,” said Patock-Peckham. “The outcomes from alcohol use are not the same for men and women, and we cannot keep using models that were developed in men to help women.”



In general, although rates of alcohol misuse are&nbsp;<a href="https://www.niaaa.nih.gov/publications/brochures-and-fact-sheets/women-and-alcohol">higher in men than in women</a>, women are&nbsp;<a href="https://pubmed.ncbi.nlm.nih.gov/26331879/">catching</a>&nbsp;<a href="https://pubmed.ncbi.nlm.nih.gov/27797998/">up</a>. Women are also&nbsp;more <a href="https://pubmed.ncbi.nlm.nih.gov/26371405/">at risk</a>&nbsp;than men of developing alcohol-related problems.



The results of this study are published in the journal <a href="https://www.apa.org/pubs/journals/adb">Psychology of Addictive Behaviors</a>.



---



By <a href="mailto:bosman@truewan.co.za">Alison Bosman</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Stress causes women to consume more alcohol than intended

Currently, models of alcohol use and misuse are mostly derived...

A,View,Of,A,Meteor,Shower,And,The,Milky,Way

The Geminid meteor shower, which peaks during mid-December each year, is one of the most spectacular astronomic events, lighting up the night sky with up to 120 meteors per hour. This year, the shower will peak tonight, around 2 a.m., and continue shooting between 30 to 40 meteors per hour until early Tuesday morning. Although the meteors can be seen from most locations around the globe, the Northern Hemisphere will have the best visibility.



While most meteors are debris emerging from comets, the Geminids originate from an asteroid, <a href="https://www.npr.org/2021/12/13/1063657564/geminid-meteor-shower-when-to-watch">3200 Phaeton</a>, which was discovered on October 11, 1983 by the <a href="https://irsa.ipac.caltech.edu/IRASdocs/iras.html">Infrared Astronomical Satellite</a>, the first space telescope to perform a survey of the entire night sky at infrared wavelengths.&nbsp;



This asteroid is relatively small, measuring only 3.17 miles, and was named after the character from Greek mythology who drove the chariot of the sun-god Helios. Due to its highly elliptical orbit, some scientists consider it to be in fact a “dead comet” or a new kind of astronomical object called a “rock comet.”&nbsp;



The Geminids are denser than meteors belonging to other showers, enabling them to get as low as 29 miles above the Earth’s surface before bursting into flames. They appear to radiate from a point in the constellation Gemini (hence their name) and travel with a speed of 78,000 mph. This is more than 1,000 times faster than a cheetah, 250 times faster than the swiftest car in the world, and over 40 times faster than a speeding bullet.



Unfortunately, since dark skies are optimal for viewing meteor showers and the moon will be approximately 77 percent lit during the peak, the Geminids might be difficult to spot this year. However, from most places in the Northern Hemisphere, they should still offer a breathtaking spectacle, especially if viewed from unpolluted areas, away from city lights. For an optimal viewing experience, the naked eye remains the best instrument, since using a telescope would only limit the view of the sky.&nbsp;



“Rich in green-colored fireballs, the Geminids are the only shower I will brave cold December nights to see,” said Bill Cooke, the lead of <a href="https://www.nasa.gov/offices/meo/home/index.html">NASA’s Meteoroid Environment Office</a>, located at the Marshall Space Flight Center in Huntsville, Alabama.



This year, the shower can also be watched from the comfort of one’s home: NASA will broadcast a live stream of the shower’s peak via a meteor camera placed at the Marshal Space Flight Center. The stream will start at 8 p.m. CST on the&nbsp;<a href="https://www.facebook.com/NasaMeteorWatch/">NASA Meteor Watch</a>&nbsp;Facebook page.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

The spectacular Geminid meteor shower peaks tonight

The Geminid meteor shower, which peaks during mid-December each year,...

A new study has found that <a href="https://www.earth.com/news/indigenous-knowledge-can-help-protect-amazon-wildlife/">indigenous</a> people in the rainforests of Gabon have more knowledge about plant and fruit-eating animals (frugivore) interactions than that found in academic sources. On average, indigenous people in Doussala, Gabon knew about 732 different plant and frugivore interactions, covering 100 frugivores ranging from elephants to bats, and 286 plant species. Astonishingly, some locals were able to identify up to 2,700 interactions.



When comparing this Indigenous knowledge with information found in academic literature, the researchers found that 34 percent of these interactions were known only by local people, 22 percent were unique to academic sources, and 44 percent were shared between the two.



&nbsp;“Comparing knowledge from local people with academic knowledge from literature, we found that even though many interactions were known by both, local people were the most knowledgeable,” said study lead author Clémentine Durand-Bessart, a PhD researcher at <a href="https://biogeosciences.u-bourgogne.fr/en/home-page">Biogéosciences Université de Bourgogne</a> and <a href="https://cesco.mnhn.fr/fr">Centre d'Écologie et des Sciences de la Conservation</a>, France.&nbsp;



“In our two months of fieldwork in Doussala, we obtained as much, if not more information on the diversity of interactions between trees and fruit-eating animals than those obtained (and published) in the academic literature that required decades of work.”



Indigenous knowledge has been historically undervalued. The findings highlight the need for integrating local sources of knowledge with academic literature, in order to fully understand the complexity of ecological networks. This would be particularly valuable in remote locations, where conducting scientific research could be expensive as well as potentially dangerous.



“An important aspect of ecological studies is to gather as much knowledge as possible to have a better view of how ecosystems work. Our study clearly demonstrates that local ecological knowledge, which is often unique, is invaluable to understanding numerous ecological processes, particularly in remote areas,” explained Durand-Bessart.



“The addition of these interactions to those of the academic literature are changing what we know of tree-frugivore interactions and will ultimately help to inform how we protect these species and habitats.”



According to Durand-Bessart, there is an urgent need for a collaborative relationship between scientists and local communities, from which both parties can benefit. “This can be done through valuing local knowledge and compiling the collected knowledge in local dialects. I also think it’s really important to share the feedback from the study to local communities who make this type of research possible.”



This study will be presented at the <a href="https://www.britishecologicalsociety.org/events/ecology-across-borders-2021/">Ecology Across Borders</a> conference in Liverpool, which takes place between 12 and 15 December, 2021.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Indigenous knowledge has been greatly undervalued

A new study has found that indigenous people in the...

Throughout history, rivers have transported a large amount of driftwood to the oceans. However, humans all over the globe are increasingly interfering with this process. New research led by <a href="https://www.colostate.edu/">Colorado State University</a> (CSU) has found that disrupting the flow of driftwood from rivers to oceans can have a significant impact on marine ecosystems.



“Dead trees, known as large wood in rivers or driftwood in oceans, have come to be more appreciated since pioneering research in old-growth forests revealed the role of standing and downed dead wood in providing nutrients and habitats to a wide array of organisms,” wrote the study authors.



Driftwood also plays a crucial role when it reaches both freshwater ecosystems, such as those in rivers or lakes, and marine ecosystems. In the open ocean, driftwood provides vital habitat and food sources for a large variety of organisms, including mollusks, fungi, crustaceans, and microbial communities.



“When driftwood sinks, it’s like a sunken coral reef,” said study lead author Ellen Wohl, a fluvial geomorphologist at CSU. “Living creatures, mostly invertebrates, clams and crustaceans use that wood as a refuge.”&nbsp;



During the past few centuries, human activities have significantly reduced wood supply to the oceans by altering each component of production, recruitment, or transport. “We as humans have been altering the wood cascade and interrupting it for more than a century,” said Wohl.



Driftwood is often removed in some coastal areas, such as tourist beaches in the Mediterranean, disregarding its crucial role for a variety of animals and plants, as well as for the movement of sand.



“Small scale human impacts, such as removing wood from a river, draining a floodplain and logging a hillslope, affect the entire river corridor at a much broader scale,” said study co-author Emily Iskin, a doctoral student in the <a href="https://warnercnr.colostate.edu/geosciences/">Department of Geosciences</a> in the Warner College of Natural Resources at CSU. “Everything is connected. Logjams in a river are not only beneficial to that local ecosystem, but also provide benefits downstream all the way to the open ocean.”



Professor Wohl hopes that these findings will increase efforts to measure wood flux to the oceans from the remaining relatively undammed rivers such as the Yukon and the Mackenzie in North America, or the Amazon and the Congo in the tropics, and help reduce humans’ interaction with these essential natural processes.



The study is published in the journal <a href="https://www.science.org/doi/10.1126/sciadv.abj0988">Science Advances</a>.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Disrupting the flow of driftwood affects marine ecosystems

Throughout history, rivers have transported a large amount of driftwood...

The <a href="https://www.earth.com/news/omicron-high-transmissibility-and-chance-for-reinfection/">Omicron</a> variant of the coronavirus was first identified in South Africa on November 26, 2021. It has already spread to <a href="https://www.ecdc.europa.eu/en/news-events/epidemiological-update-omicron-data-10-december">62 countries</a> all over the world, and may <a href="https://www.washingtonpost.com/world/europe/omicron-dominant-europe-covid/2021/12/10/7ec14c42-59df-11ec-8396-5552bef55c3c_story.html">become the dominant variant</a> in some European countries by as early as next week.&nbsp;



Omicron does not seem to cause more severe illness. In fact, its symptoms appear to be <a href="https://www.economist.com/graphic-detail/2021/12/11/early-data-on-omicron-show-surging-cases-but-milder-symptoms">milder</a> than those of previous variants. However, its high transmissibility makes experts claim that Omicron will soon become dominant globally, giving rise to enormous waves of infections in most of the world’s countries.



In one of the first peer-reviewed studies about this variant (published in&nbsp;the journal <a href="https://www.tandfonline.com/doi/full/10.1080/22221751.2021.2017757">Emerging Microbes &amp; Infection</a>), a research team led by China’s <a href="http://english.nmpa.gov.cn/2019-07/19/c_389166.htm">National Institutes for Food and Drug Control</a> (NIFDC) has tested 28 serum samples from COVID-19 convalescent patients infected with the original strain of the coronavirus that emerged from Wuhan against in vitro Omicron samples (as well as other variants of concern and interest).&nbsp;



The experts discovered that the neutralization potential of these sera against Omicron decreased 8.4 fold. This reinforces previous <a href="https://www.medrxiv.org/content/10.1101/2021.11.11.21266068v2.full.pdf">findings</a> that argued that Omicron is capable of dodging immunity gained from previous infections.



“We found the large number of mutations of the Omicron variant did cause significant changes of neutralization sensitivity against people who had already had COVID,” said study senior author Youchun Wang, a researcher at NIFDC. “However, the average ED50 (protection level) against Omicron is still higher than the baseline, which indicated there is still some protection effect that can be observed.”



Wang and his colleagues predict that Omicron may be able to evade to a certain degree also vaccine-induced immunity, particularly since real-world data has already shown that the protection from vaccines diminishes significantly four to six months after the second dose.&nbsp;



Pfizer and BioNTech have also <a href="https://www.pfizer.com/news/press-release/press-release-detail/pfizer-and-biontech-provide-update-omicron-variant">reported</a> earlier this week that sera from individuals who received two doses of their vaccine exhibit more than a 25-fold reduction in neutralization titers against the Omicron variant compared to the wild-type virus, and strongly suggested people to get a booster shot.



“Although two doses of the vaccine may still offer protection against severe disease caused by the Omicron strain, it’s clear from these preliminary data that protection is improved with a third dose of our vaccine,” said&nbsp;Albert Bourla, Pfizer’s Chairman and Chief Executive Officer. “Ensuring as many people as possible are fully vaccinated with the first two dose series and a booster remains the best course of action to prevent the spread of COVID-19.”



However, future real-world studies are essential for clarifying Omicron’s ability to evade previously acquired immunity and thus establish the potential global impact of this new variant.&nbsp;



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Omicron: Partial immune evasion after vaccination

The Omicron variant of the coronavirus was first identified in...

A new study led by the <a href="https://www.idc.ac.il/en/schools/psychology/research/pages/developmental-social-neuroscience.aspx">Center of Developmental Neuroscience</a> at Reichman University, Israel, has found that chemical signals in mothers’ body odor may have a significant role in supporting the development of infants’ social <a href="https://www.earth.com/news/social-isolation-damages-our-brains/">brains</a> and make them capable of interacting with strangers from an early age.



While maternal body odors serve as important safety-promoting and social recognition signals, their role in human brain maturation has been largely unknown. A research team led by Yaara Endevelt-Shapira, a postdoctoral research associate at the Center for Developmental Neuroscience, has recently investigated in more detail the complex role of chemical signals in enhancing infant-adult brain-to-brain synchrony.



The scientists gave 62 mothers a cotton t-shirt each and asked them to use it as a pajama for two consecutive nights before the experiment. In a first stage of the empirical study, the mothers and their infants had electrodes placed on their heads and were seated initially back-to-back, then face-to-face. When they were facing each other, mothers and infants shown higher neural synchrony.



In a second stage of the experiment, 51 of the infants were seated face-to-face with a stranger – a woman with a similar age as their mothers who lived in a nearby area and had an infant of about the same age. While the infants interacted with this woman, they were exposed to either a clean t-shirt or the t-shirt that their mother used.



Infants who were exposed to a clean t-shirt showed a significantly lower inter-brain neural synchrony with the stranger than with their mother. By contrast, those exposed to the t-shirt with their mother’s body odor showed the same degree of neural synchrony with the stranger as with their mother.&nbsp;



These findings suggest that scent preserves a chemical signal of the mother’s presence even in her absence, increasing the infants’ social capabilities and helping them survive in a constantly changing social environment.



“Human mothers use interbrain mechanisms to tune the infant’s social brain, and chemosignals may sustain the transfer of infant sociality from the mother-infant bond to life within social groups,” the authors concluded.



The study is published in the journal <a href="https://www.science.org/doi/10.1126/sciadv.abg6867">Science Advances</a>.



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By <a href="mailto:andrei.ionescu5891@gmail.com">Andrei Ionescu</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Maternal chemical signals help infants bond with strangers

A new study led by the Center of Developmental Neuroscience...

Scientists estimate that globally two out of five plant species are threatened with <a href="https://www.earth.com/news/hundreds-of-dragonfly-species-at-risk-of-extinction/">extinction</a>. Despite this clear trend, there is still much debate over whether species richness is also declining locally. This phenomenon is referred to as the “biodiversity conservation paradox."



An international team of scientists led by <a href="https://www.idiv.de/en/about-idiv.html">iDiv</a> has now taken a closer look at the displacement of rare plants by analyzing a shift in species composition across three habitats. Plant species were examined in mountain summits, woodland understories, and meadows and pastures.&nbsp;



The results show that widely distributed plants which prefer nutrient rich soils are becoming more common, while plants with small ranges requiring low nutrient soils are in decline.&nbsp;



Across the mountain habitats, species numbers are still increasing. However, according to study first author Dr. Ingmar Staude, this may not always be the case. He said that in the long term, species displacement may be expected here too.



The plant species composition analysis was derived from research at 141 study areas spread across 19 countries. The data goes back as far as the 1940s.&nbsp;



The researchers found that the major culprit of species displacement is an increase in soil nutrients such as nitrogen, which is associated with agriculture. Combustion and an increase in soil temperatures are also contributing factors. These additional factors cause the phenomena to be far outside of normal agricultural areas.&nbsp;



“We are witnessing these dynamics unfolding in near-natural habitats, places we’d expect to provide safe havens for specialized species and those of high conservation value," said Dr. Ingmar. "This suggests that the Anthropocene is not stopping at the doors of the few remaining wild areas that we consider protected.”



“The results of the study are not just be seen as an ‘early warning signal,' said study co-author Professor Harold Pauli. "Particularly concerning is that the species change has proceeded in the same direction across strongly differing ecosystems. We, therefore, expect that we are dealing here with a pervasive, large-scale phenomenon.”



Overall, the research highlights the issue of intense agriculture driving local extinction of rare plants. Unfortunately, this problem will only get worse with a growing population that will demand even more agriculture.&nbsp;



The study is published in the journal <a href="https://onlinelibrary.wiley.com/journal/14610248">Ecology Letters</a>.



---By <a href="mailto:zachfitzner@yahoo.com">Zach Fitzner</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Rare plants are displaced by more common species

Scientists estimate that globally two out of five plant species...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Nushagak Bay, a large estuary in southwest Alaska. Nushagak runs mainly north to south and exits in Bristol Bay, a large body of water in the Bering Sea.



"The bay is primarily fed by the Nushagak River, which begins in the Alaska Range and flows southwest approximately 450 km. The bay is also fed by several additional rivers including the Wood, Igushik, Snake and Weary rivers," says ESA.



"The dark colors of the Nushagak River are most likely due to tannins or lignins (chemical substances found in plants). Tannins and lignins from roots, leaves, seeds, bark and soil can leach into the water and give it a brown or even black colour. The sediments then flow southwards where it is mixed with the bluer waters of the bay."



Video/ Image Credit: ESA



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Nushagak Bay in southwest Alaska

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> (ACS) reveals that proteins on flu viruses are actually flexible, tilting and waving in a “breath-like” motion. According to the experts, these proteins could be used to better defend against the flu.



"The main antigenic targets of influenza virus are two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Whereas the structural and dynamical properties of both glycoproteins have been studied previously, the understanding of their plasticity in the whole-virion context is fragmented," wrote the researchers.



To investigate, the team conducted detailed simulations of the influenza A H1N1 virion, or the swine flu. The experts concluded that the visualizations show many new vulnerable states of flu viruses, which could improve future vaccines and antiviral drugs.



Video/ Image Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Flu viruses are more flexible than expected

[sendtonews key="G9bUoxcjr4-2511624-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Lake Trasimeno, which is located west of Perugia in central Italy. It is the fourth largest lake in the country. While Trasimeno’s water level varies, it has a maximum depth of approximately six meters.&nbsp;



"In this Copernicus Sentinel-2 image, captured on 6 August 2022, the lake’s emerald green colour is likely due to the presence of phytoplankton. Streaks in the water, particularly visible in the west, indicate the presence of soil and sediments which have been stirred up by winds. Dark colored waters in the southern part of the lake indicate a presence of submerged and floating macrophytes (aquatic plants) as well as algae," says ESA.



"Surrounded by hills on three sides, Trasimeno is subject to heavy storms created by winds, especially from the north and west. There are three islets in the lake: Maggiore, Minore and Polvese (the largest). The lake’s shores are sparsely inhabited with only two popular villages: Castiglione del Lago and Passignano sul Trasimeno."



"Italy is experiencing its worst drought in 70 years which has affected drinking water supplies, hydroelectric power and agricultural production. High temperatures, hot winds and lack of rainfall are the main causes of drought in the Umbrian region which saw Lake Trasimeno’s drop 1.3 m, reaching the limit of the hydrometric zero in July 2022."



Video/Image Credit: ESA&nbsp;



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Lake Trasimeno in Central Italy

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Today's Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> describes a new self-powered nanosensor that can instantly detect mercury contamination with the tap of a finger.&nbsp;



The oxidized form of mercury can be harmful when it is ingested through contaminated water or food. This makes it necessary for experts to develop sensors that can quickly and accurately detect the presence of mercury.&nbsp;



Zong-Hong Lin and colleagues have now created a triboelectric nanosensor (TENS) that can detect mercury by simply by touching a sample. According to the researchers, their TENS could serve as the basis for similar devices to safely and remotely monitor other pollutants.



Video Credit: American Chemical Society&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Detecting mercury contamination with the tap of a finger

[sendtonews key="LvS8v8bp9z-2564889-12187" type="single"] Today's Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.acs.org/">American Chemical Society</a> explores the ability of salt to transform the way that foods and beverages taste. Salt is known to cover up undesirable flavors, such as bitterness in coffee or beer, but how exactly does sodium chloride change the taste of other compounds?



One previous study showed that, not only does salt suppress bitterness, but also enhances sweetness and sourness. Another study revealed that bitterness reduction by salt seems to be happening at the tongue receptor level as well as in the brain.&nbsp;



While it is known that salt taste is mediated by the presence of sodium channels in the form of taste buds, experts believe that there is also an unknown receptor responsible for how we taste salt that has not yet been identified.&nbsp;



Video Credit: ACS Reactions



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

How does salt makes things taste better?

[sendtonews key="X0f6OHYoI4-2310561-12187" type="single"] Today’s Video of the Day from the...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Santiago, the capital city of Chile. The city is located in the center of the Santiago Metropolitan Region, which has a population of about eight million people.&nbsp;



'The weather of Santiago resembles the Mediterranean climate with dry and warm summers with temperatures reaching up to 35°C (from October to March) and cool and humid winters that can drop to 0°C (from April to September)."



"The city lies in the centre of the country’s central valley around 80 km from the Pacific Ocean to the west and borders Argentina to the east. A tiny part of Argentina is visible in the top-right corner of the image where the mountain crest of the Andes Mountains acts as a divider between the two countries," says ESA.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Santiago, Chile in South America

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Spiral,Galaxy,,Illustration,Of,Milky,Way

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Astronomers at <a href="https://www.jhu.edu/">Johns Hopkins University</a> have created an interactive map of the universe, including the actual position and real colors of 200,000 galaxies. The map allows the public to access data that was previously only available to scientists.



The map was developed using data collected by the Sloan Digital Sky Survey. For over two decades, a telescope in New Mexico was aimed at slightly different locations to capture the night sky.&nbsp;



"Growing up I was very inspired by astronomy pictures, stars, nebulae and galaxies, and now it's our time to create a new type of picture to inspire people," said map creator Brice Ménard, a professor at Johns Hopkins. "Astrophysicists around the world have been analyzing this data for years, leading to thousands of scientific papers and discoveries. But nobody took the time to create a map that is beautiful, scientifically accurate, and accessible to people who are not scientists. Our goal here is to show everybody what the universe really looks like."



"In this map, we are just a speck at the very bottom, just one pixel. And when I say we, I mean our galaxy, the Milky Way which has billions of stars and planets. We are used to seeing astronomical pictures showing one galaxy here, one galaxy there or perhaps a group of galaxies. But what this map shows is a very, very different scale."



"From this speck at the bottom, we are able to map out galaxies across the entire universe, and that says something about the power of science."



The <a href="https://mapoftheuniverse.net/">interactive map</a> is available online, where it can be downloaded for free.



Video Credit: Johns Hopkins&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Interactive map of the universe includes 200,000 galaxies

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Lesotho: Africa's "Kingdom in the Sky" Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features northwest Lesotho in South Africa.



According to ESA, Lesotho is the only nation in the world that lies completely above 1,000 m in elevation. The country is famous for its tall mountains and narrow valleys, and is known as Africa's "Kingdom in the Sky."



Out of a population of around two million people, about 80 percent live in rural areas. More than 75 percent of these people are engaged in <a href="https://www.earth.com/news/climate-change-will-have-a-global-impact-on-agriculture/">agriculture</a>, including rainfed cereal production and animal grazing.&nbsp;



ESA reports that the country’s agricultural system faces a growing number of issues, with climate-related vulnerabilities such as drought, floods and extreme temperatures occurring more frequently. 



Diamonds are amongst the minerals found in the mountains. Indeed, Lesotho can truly be called the Kingdom in the Sky. Beautiful, culturally rich, safe, affordable, and easily accessible from Durban and Johannesburg, mountainous Lesotho is a vastly underrated travel destination. the Kingdom of Lesotho (Sotho: 'Muso oa Lesotho) is an enclaved country in southern Africa. It is just over 30,000 km2 (11,583 sq mi) in size and has a population of around 2 million.



Video Credit: ESA&nbsp;&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer 



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Lesotho: Africa's "Kingdom in the Sky"

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features Dublin, the capital and largest city of Ireland. Beyond its pub culture, Dublin is known as a modern culinary destination and a UNESCO City of Literature.



"Dublin is located near the midpoint of Ireland’s east coast in the province of Leinster. The city, which covers an area of around 115 square kilometers, is bordered by the Dublin Mountains, a low mountain range to the south, and is surrounded by flat farmland to the north and west," says ESA.



"The city straddles the River Liffey, which rises in the Wicklow Mountains and flows around 80 kilometers eastwards through the city of Dublin, in which it is canalised and bordered with quays. It then empties into Dublin Bay, an arm of the Irish Sea."



Dublin has an abundance of green spaces, including one of the largest enclosed public parks in any European capital city. Phoenix Park, which was originally formed as a royal hunting park in the 1660s, includes 707 hectares of green space.



Video Credit: ESA&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The city of Dublin on Ireland's east coast

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Today's Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the province of Zaragoza in northeast Spain. The image was captured by the Copernicus Sentinel-2 mission.



"Together with the provinces of Huesca and Teruel, Zaragoza formed the old kingdom of Aragon. Its capital, also called Zaragoza (not visible in this image) is home to around half of Aragon’s population," says ESA.



"The Ebro River can be seen winding its way through the province from west to east in this image. Between its source in the Cantabrian Mountains in the northwest and its delta on the Mediterranean coast, the Ebro River is fed by more than 200 tributaries as it flows 910 km across much of northern Spain."



Since rainfall is very scarce in this region, irrigation in the Ebro basin is critically important. In the valleys surrounding the Ebro River, many fields are used for growing crops such as corn, wheat, and barley.



Video/ Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The province of Zaragoza in northeast Spain

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> reveals the evolution of the Columbia Glacier in southeastern Alaska. Columbia is among the fastest shrinking glaciers in the world, and the video documents its rapid retreat over the years.&nbsp;



Columbia Glacier is a large, multi-branched calving glacier that flows out of the Chugach Mountains to the Prince William Sound.&nbsp;



According to USGS, Columbia had a long history of stability prior to 1980, with a length 41 miles, and small, short-lived advances or retreats.



In the years since 1980, however, satellite images have captured Columbia’s alarming retreat. By using false-color images, scientists can distinguish between snow and ice, open water, vegetation, and rocky debris on the glacier’s surface.



The series of false-color images featured in today's video were acquired over the span of 35 years. You can see that by 2021, the glacier’s main branch had retreated about 15 miles from its initial position.



The Columbia Glacier has also lost more than 50 percent of its volume, mostly due to calving. <a href="https://www.earth.com/video/nasa-reveals-3d-visual-of-an-atmospheric-river/">NASA</a> reports that while climate change likely started the retreat, mechanical processes kept the disintegration going.



The NASA images are provided by Jesse Allen, Robert Simmon, Joshua Stevens, and Lauren Dauphin using data from Landsat satellites, from the U.S. Geological Survey, and data from MODIS on NASA’s Terra satellite. The structure of Columbia’s moraine played a large role in the stability of the glacier before 1980. 



Like other tidewater glaciers, the Columbia built up a moraine over time, and the mixture of ice and rock functioned like a dam keeping out the sea. It was supported on one end by the shoreline and by the underwater terminal moraine at the other.



Video Credit: NASA Earth Observatory/&nbsp; NASA’s Scientific Visualization Studio



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The rapid retreat of the Columbia Glacier

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> features the Pyrenees Mountains, which form a natural boundary between France and Spain in southwest Europe.



The mountain range is 430 kilometers in length. It stretches from the Mediterranean Sea on the east to the Atlantic Ocean on the west.



At an elevation of 3404 meters, Pico de Aneto is the highest mountain peak in the Pyrenees, and the third-highest peak in Spain. Pico de Aneto is located in the Posets-Maladeta Natural Park, which spans more than 82,000 acres.&nbsp;



"Geological studies have revealed that the Pyrenees Mountains have been around for longer than the Alps, with their sediments first deposited in coastal basins during the Paleozoic and Mesozoic eras," reports ESA.



"The entire mountain range formed due to the upwelling of large sedimentary rocks by the collision of the Iberian and the Eurasian plate around 100 to 150 million years ago, followed by intense erosion from ice and water."



The western Pyrenees receive more precipitation due to moisture blowing in from the Atlantic Ocean. The mountain range contains many lakes, several small glaciers, and some of the highest waterfalls in Europe.



Video &amp; Image Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The Pyrenees Mountains in southwest Europe

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Earth,Like,Exoplanet,3d,Render

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes two exoplanets that are orbiting a star 218 light-years away. A team of researchers led by the University of Montreal has found evidence that these planets are "water worlds."



The experts used data from NASA’s Hubble and Spitzer Space Telescopes. They discovered that exoplanets Kepler-138 c and Kepler-138 could be composed largely of water.



"We previously thought that planets that were a bit larger than Earth were big balls of metal and rock, like scaled-up versions of Earth, and that's why we called them super-Earths," explained study co-author Björn Benneke.&nbsp;



"However, we have now shown that these two planets, Kepler-138 c and d, are quite different in nature and that a big fraction of their entire volume is likely composed of water. It is the best evidence yet for water worlds, a type of planet that was theorized by astronomers to exist for a long time."



Video Credit: NASA Goddard



Image Credit: NASA, ESA, and Leah Hustak (STScI)



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Two distant planets may be "water worlds"

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Satellites reveal how Earth's systems are interconnected Today’s Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes Earth’s interconnected systems, and how this network is affected by rising temperatures.&nbsp;



During 2020, average global temperatures matched the hottest year on record. The hurricane season was also record-breaking, with many of the storms intensifying at extraordinary speeds. Hot water in the ocean is fuel for hurricanes. The satellite data shows that it's all one interconnected system showing how Satellites reveal how Earth's systems are interconnected.



According to NASA, dust swept up from Northern Africa plays a major role in the formation of hurricanes, and is also a key source of fertilization in the Amazon rainforest. As a result of<a href="https://www.earth.com/news/seagrass-wasting-disease-is-fueled-by-climate-change/"> climate</a> change, dust plumes are expected to decline, which will have an effect on vegetation far away.&nbsp;



Images from Earth-observing satellites show how the world’s plant life is affected by natural disasters, fires, and deforestation. Satellites also reveal how widespread changes in vegetation impact waterways,&nbsp; the climate, air quality. Satellites communicate by using radio waves to send signals to the antennas on the Earth. "Earth From Space" is a groundbreaking two-hour special that reveals a spectacular new space-based vision of our planet. 



Video Credit: NASA Goddard&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Satellites reveal how Earth's systems are interconnected

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Today’s Video of the Day from the <a href="https://welcome.miami.edu/">University of Miami</a> Rosenstiel School of Marine and Atmospheric Science explores how changes in water temperatures have affected tiger shark habitats and movements in the North Atlantic Ocean. The study reveals that rising temperatures have caused the sharks to shift toward the poles over the past 40 years.



“Tiger shark annual migrations have expanded poleward, paralleling rising water temperatures,” explained study lead author Neil Hammerschlag. “These results have consequences for tiger shark conservation, since shifts in their movements outside of marine protected areas may leave them more vulnerable to commercial fishing.”



The researchers analyzed nine years of tracking data from satellite-tagged tiger sharks, combined with four decades of conventional tag and recapture data provided by National Oceanic and Atmospheric Administration (NOAA) Cooperative Shark Tagging Program.



The experts found that during the last decade of record heat, for every one-degree Celsius increase in water temperatures, tiger sharks migrated further poleward by over 400 kilometers. They also migrated two weeks earlier than usual to waters off the northeastern coast of the United States.



“Given their role as apex predators, these changes to tiger shark movements may alter predator-prey interactions, leading to ecological imbalances, and more frequent encounters with humans,” concluded Professor Hammerschlag.



Video Credit: University of Miami Rosenstiel School of Marine and Atmospheric Science



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Tiger sharks are shifting poleward as temperatures rise

Today’s Video of the Day from the University of Miami...

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> is focused on the melt ponds that emerge during the spring and summer on the Greenland Ice Sheet, which is the largest ice mass in the northern hemisphere.



"Melt ponds are vast pools of open water that form on both sea ice and ice sheets and are visible as turquoise-blue pools of water in this Copernicus Sentinel-2 image," says ESA.



"When snow and ice melts atop glaciers, water flows in channels and streams and collects in depressions on the surface. These melt ponds can speed up the melting of the surrounding ice since they greatly reduce the ice’s ability to reflect sunlight."



"This can create a positive feedback where an increasing number of melt ponds absorb more heat which causes ice cover to melt even faster."



According to ESA, Greenland has been hit with a late-season heatwave that began in early September. This caused the type of melt event that usually occurs in the middle of summer.



"In a recent paper published in Nature Climate Change, scientists found that major sea-level rise from the melting of the Greenland ice cap is now ‘inevitable’ even if the burning of fossil fuels were to halt overnight," says ESA. "Using satellite observations of Greenland ice loss and ice cap from 2000 to 2019, the team found the losses will lead to a minimum rise of 27 cm regardless of climate change."



Video Credit: ESA&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Melt ponds on the Greenland Ice Sheet

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes a new map of Mars that is providing insight into the planet’s watery past. The map also reveals where future missions could safely land on Mars.&nbsp;



The map has been created over the last decade using observations of water-rich rocks and mineral deposits. The images were captured by ESA’s Mars Express and NASA’s Mars Reconnaissance Orbiter.



"A big surprise is the prevalence of these minerals, with the map revealing hundreds of thousands of water-affected locations in the oldest parts of the planet," says ESA. "The new data will help answer exciting questions about Mars’ climate history, whether water was globally persistent or confined to short, intense episodes, and whether the conditions were ever suitable for life."



"Specifically, the map shows the locations and abundances of aqueous minerals. These are from rocks that have been chemically altered by the action of water in the past, and have typically been transformed into clays and salts."



According to John Carter of the Institut d’Astrophysique Spatiale (IAS), our collective understanding of Mars has been oversimplified. He explained that planetary scientists have tended to think that only a few types of clay minerals on Mars were created during its wet period, then as the water gradually dried up, salts were produced across the planet.



The new map shows that the composition of Mars is much more complicated than what we thought. For example, while many salts formed after Martian clays, there are some salts that are presumed to be older than some of the clays.&nbsp;



“The evolution from lots of water to no water is not as clear cut as we thought, the water didn’t just stop overnight. We see a huge diversity of geological contexts, so that no one process or simple timeline can explain the evolution of the mineralogy of Mars. That’s the first result of our study. The second is that if you exclude life processes on Earth, Mars exhibits a diversity of mineralogy in geological settings just as Earth does,” said Carter.



Video Credit: ESA



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

The history of Mars is much more complex than we thought

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Today's Video of the Day from the <a href="https://www.stowers.org/">Stowers Institute for Medical Research</a> describes how cavefish adapted to a sedentary lifestyle over tens of thousands of years. 



The experts found that the muscle metabolism of cavefish has been genetically reprogrammed over time. As a result, the animals have experienced major changes in their morphology and behavior. Despite these changes, however, the cavefish remain healthy and fit.



The research may provide new clues about the evolutionary consequences of prolonged physical inactivity in humans.&nbsp;



“It’s no surprise that people are moving less and less as technology has advanced,” said Rohner. “With cavefish, we have a unique system where we can study what might happen if people remained couch potatoes over very, very long periods of time.”



Video Credit: Stowers Institute for Medical Research



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



Check us out on <a href="https://www.earth.com/earthsnap/">EarthSnap</a>, a free app brought to you by Eric Ralls and Earth.com.

Cavefish are healthy despite their sedentary lifestyle

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Today’s Video of the Day from <a href="https://earthobservatory.nasa.gov/">NASA Earth Observatory</a> some of the most incredible waves in the world, as seen by Landsat satellites.



"With more than 370,000 miles of coastline on Earth, there are plenty of places where epic waves build up, curl over, and hurtle toward the shore.- much to the thrill of surfers," says NASA. "There are some places where these waves are so magnificent that they can be seen from space."



"With the broad perspective of satellites, we can see how these iconic waves develop into the world’s tallest, longest, fastest, and heaviest."



Video Credit: NASA Earth Observatory&nbsp;



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By <a href="mailto:csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Editor



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Satellites capture the world's biggest and fastest waves

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Today’s Video of the Day from the <a href="https://www.esa.int/">European Space Agency</a> describes why satellite images and measurements of our planet have become "essential to our survival, offering a new outlook of our world."&nbsp;



Rising sea levels pose one of the biggest societal threats associated with climate change. According to ESA, satellite altimeter missions such as Copernicus Sentinel-6 are essential in monitoring global and regional changes in sea level.



"Unbeknown to many, the island of Crete, Greece, plays an important role in the Copernicus satellite altimetry constellation and on an international stage," reports ESA.



"Satellite altimetry data have to be continuously monitored at the ESA’s Permanent Facility for Altimetry Calibration where different techniques have pioneered the use of transponders to provide the best measurements to validate satellite altimeters in space soon after launch."



Dr. Craig Donlon explains that, by understanding planet Earth through satellite measurements, we are able to find evidence of change.&nbsp;



Video Credit: European Space Agency&nbsp;



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By <a href="http://csexton@earth.com">Chrissy Sexton</a>, <a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Satellites have become essential to our survival

[sendtonews key="761m2QQvR1-2035772-12187" type="single"] Today’s Video of the Day from the...