The era of wondering and wildly speculating may be drawing to a close, with researchers recently devising a new model they're calling the "formula for life." 



The experts hope this tool will calculate the chances of intelligent life existing in our universe and even predict the potential for alien life in future universes.



<h2 class="wp-block-heading" id="h-next-generation-of-intelligent-life">Next generation of intelligent life </h2>



According to this new calculation model, the likelihood of life beyond our galaxy sits at 27 percent, which may let down the 65 percent of American adults who firmly believe in extraterrestrial life.



Interestingly, the chances of <a href="https://www.earth.com/news/are-aliens-sending-radio-signals-to-each-other/" target="_blank" rel="noreferrer noopener">intelligent life</a> existing within our own Milky Way are even lower - just 23 percent.



These estimates come from the concerted efforts of researchers at the <a href="https://search.app?link=https%3A%2F%2Fwww.ed.ac.uk%2F&amp;utm_campaign=aga&amp;utm_source=agsadl2%2Csh%2Fx%2Fgs%2Fm2%2F4" target="_blank" rel="noreferrer noopener">University of Edinburgh</a> and the University of Genevieve. The study suggests that star formation and the evolution of large-scale planets might intertwine to quietly "form the next generation of intelligent life."



<h2 class="wp-block-heading" id="h-dark-energy-and-the-potential-for-alien-life">Dark energy and the potential for alien life</h2>



To understand the potential of other life forms, the team devised a theoretical model that leans heavily on the Drake Equation, developed in 1960. 



This well-known formula calculates the universe's expansion and has been used to research the existence of advanced civilizations in our galaxy.



The researchers emphasized that their calculations do not suggest a number of intelligent life forms but rather estimate the likelihood of their <a href="https://www.earth.com/news/dark-oxygen-in-the-deep-sea-may-hold-clues-about-alien-life/" target="_blank" rel="noreferrer noopener">existence</a>.



Their estimation process takes into account dark energy, which comprises over two-thirds of the universe and fuels its expansion.



"Understanding dark energy and the impact on our universe is one of the biggest challenges in cosmology and fundamental physics," said lead researcher Dr. Daniele Sorini, affiliated with <a href="https://www.durham.ac.uk" target="_blank" rel="noreferrer noopener">Durham University</a>’s Institute for Computational Cosmology.



<h2 class="wp-block-heading" id="h-potential-for-future-alien-life">Potential for future alien life</h2>



In addition to the probabilities of current extraterrestrial life, the researchers' model also accommodates for alien life forms that don't exist yet but could develop in the future. 



To do this, they calculated the amount of ordinary matter that combined to form stars across the universe's history, stretching back a staggering 13.8 billion years.



It seems the chances of <a href="https://www.earth.com/news/cosmic-connection-aliens-could-make-contact-by-2029/" target="_blank" rel="noreferrer noopener">intelligent life</a> appearing in universes beyond our own also hover at around 27 percent. 



"Surprisingly, we found that even a significantly higher dark energy density would still be compatible with life, suggesting we may not live in the most likely of universes," said Dr. Sorini.



<h2 class="wp-block-heading" id="h-implications-for-future-research">Implications for future research</h2>



The pioneering work of modeling the probability of intelligent life in other universes opens up numerous avenues for future research. Scientists are now challenged to refine these models further, grounding them in observations and experiments to reach more precise conclusions. 



Such work may involve advancing our understanding of dark matter and energy - components of the universe that remain elusive yet crucial to grasping the cosmic puzzle.



This pursuit could bridge the gap between theoretical physics and cosmology, bringing them closer within the realms of empirical science.



<h2 class="wp-block-heading" id="h-interplay-of-gravity-and-alien-life">Interplay of gravity and alien life</h2>



Another intriguing factor in cosmic life creation is gravity's role. Gravity influences the formation of stars and galaxies, effectively setting the stage for potential habitats where life could develop. 



The extent of gravity's influence in these processes highlights its importance, not just in structural formation, but in setting conditions that could favor the emergence of life. 



Existing research suggests that regions with optimal gravity balance might support complex planetary systems, paving the way for biological evolution. 



As scientists continue to explore the mysteries of the universe, understanding the precise role of gravity will add another layer to our comprehension of life's cosmic potential.



<h2 class="wp-block-heading" id="h-from-speculation-to-exploration">From speculation to exploration</h2>



"It will be exciting to employ the model to explore the emergence of life across different universes and see whether some fundamental questions we ask ourselves about our own universe must be reinterpreted," noted study co-author Lucas Lombriser, a professor at the University of Genevieve.



If this research can help us to better understand our own universe and its likelihood for hosting life, it seems we have come a long way from wild speculation to measured investigation into our place in the cosmos.



So, what does this all mean for us? Are we on the brink of making contact with alien life forms? While the research findings might lead some to temper their expectations, the search for extraterrestrial life continues.



In the end, we need to remember that the universe is vast, mind-bogglingly diverse, and still largely unexplored. The <a href="https://www.earth.com/news/finding-alien-life-searching-for-color-purple-not-green/" target="_blank" rel="noreferrer noopener">potentials for life</a> - both as we know it and beyond our current comprehension - remain a thrilling frontier in scientific exploration.



The study is published in the journal <a href="https://academic.oup.com/mnras/article/535/2/1449/7896079?login=false#493432585" target="_blank" rel="noreferrer noopener">Monthly Notices of the Royal Astronomical Society</a>.



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What are the chances that alien life exists?

The era of wondering and wildly speculating may be drawing to a close, with researchers recently devising a new model they're calling the "formula for life." The experts hope this tool will calculate the chances of intelligent life existing in our universe and even predict the potential for alien life in future universes. Next generation of intelligent life According to this new calculation model, the likelihood of life beyond our galaxy sits at 27 percent, which may let down the 65 percent of American adults who firmly...

Sherpas, an ethnic group from the mountain regions of Nepal, are able to live at high altitude with no apparent health consequences and could help scientists develop new ways of treating lack of <a href="https://www.earth.com/news/low-oxygen-levels-delayed-evolution/">oxygen</a>, a new study said.

Previous studies have suggested that Sherpas have fewer blood cells at high altitude, but higher levels of nitric oxide, a chemical that opens up blood vessels and keeps blood flowing.

A team of <a href="https://www.cam.ac.uk/">University of Cambridge </a>researchers followed two groups, one of Sherpas, the other lowlanders, as they made a gradual ascent up to Mount Everest Base Camp at an elevation of 5,300 m.

The team found the Sherpas' mitochondria were more efficient at using oxygen to produce ATP, the energy that powers our bodies. They also found lower levels of fat oxidation in the Sherpas.

The measurements taken at high altitude rarely changed in the Sherpas, suggesting that they were born with such differences. For lowlanders, however, measurements tended to change after time spent at altitude, suggesting that their bodies were acclimatizing and beginning to mimic the Sherpas'.

One of the key differences the study uncovered, was in the levels of phosphocreatine an energy reserve that acts as a buffer to help muscles contract when no ATP is present. In lowlanders, after two months at high altitude, phosphocreatine levels crash, whereas in Sherpas levels actually increase.

The team found differences in the levels of free radicals, molecules created by a lack of oxygen that can be potentially damaging to cells and tissue. While these cells increase rapidly at high altitude, at least initially, levels in Sherpas are very low.

"Sherpas have spent thousands of years living at high altitudes, so it should be unsurprising that they have adapted to become more efficient at using oxygen and generating energy," said Dr. Andrew Murray from the University of Cambridge, the study's senior author. "When those of us from lower-lying countries spend time at high altitude, our bodies adapt to some extent to become more 'Sherpa-like', but we are no match for their efficiency."

The findings could provide valuable insights to explain why some people suffering from lack of oxygen, called hypoxia, fare much worse in emergency situations that others.

"Although lack of oxygen might be viewed as an occupational hazard for mountain climbers, for people in intensive care units it can be life threatening," said Mike Grocott of the <a href="http://www.southampton.ac.uk/">University of Southampton.</a> "One in five people admitted to intensive care in the UK each year die and even those that survive might never regain their previous quality of life.”

--

By: <a href="mailto:dbeasley@earth.com">David Beasley, </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source:  <a href="https://www.cam.ac.uk/">University of Cambridge</a>

How Himalayan Sherpas could lead to new medical treatments

Sherpas, an ethnic group from the mountain regions of Nepal,...

People find attractive scientists interesting, but consider their less attractive colleagues to be better scientists, a new study found.

Researchers from the <a href="https://www.cam.ac.uk/">University of Cambridge </a>and the <a href="http://www.essex.ac.uk/">University of Essex</a> used pictures of scientists from universities in the U.S. and the UK for the study.

In the first set of studies, the team asked one group of participants to rate the faces on a variety of traits, such as how intelligent the individual looked, how attractive they were, and their perceived age. Then, two other groups of participants indicated how interested they would be in finding out more about each scientist's research or how much the person looked like someone who conducts accurate and important research.

People were more interested in learning about the work of scientists who were physically attractive and who appeared competent and moral, the study found. Interest was also slightly stronger for older scientists, and slightly lower for females. There was no difference in interest between white and non-white scientists.

However, the more attractive and sociable the scientists were perceived to be, the less people considered them to look like a <a href="https://www.earth.com/news/ultimate-natural-sunscreen/">scientist</a> who conducts good research.

The researchers also investigated whether facial appearance affects people's choices about which science to engage with by pairing the titles of real science-news stories with faces that had received low or high interest judgments in the first part of the study.

Participants were more likely to choose research that was paired with a photo of an interesting-looking scientist. This bias was present both for male and female scientists, physics and biology news stories, and both video and text formats.

"It seems that people use facial appearance as a source of information when selecting and evaluating science news," said Dr Will Skylark from the Department of Psychology at the University of Cambridge, leader of the study. "It's not yet clear how much this shapes the spread and acceptance of scientific ideas among the public, but the rapid growth in visual media means it may be an increasingly important issue."

--

By: <a href="mailto:dbeasley@earth.com">David Beasley, </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="https://www.cam.ac.uk/">University of Cambridge</a>

People see attractive scientists as interesting but less capable

People find attractive scientists interesting, but consider their less attractive...

Portions of the human spine structure that enable efficient walking motions were established millions of years earlier than previously thought, according to a new study of a 3.3 million year-old fossil skeleton.

The fossil is known as "Selam," and is a nearly complete skeleton of a 2½ year-old child discovered in Dikika, Ethiopia in 2000 by Zeresenay (Zeray) Alemseged, Professor of Organismal Biology and Anatomy at the <a href="http://www.uchicago.edu/">University of Chicago</a> and senior author of the new study.

Analysis revealed the most complete spinal column of any early human relative, including vertebrae, neck and rib cage, the university said.

"Continued and painstaking research on Selam shows that the general structure of the human spinal column emerged over 3.3 million years ago, shedding light on one of the hallmarks of human evolution," Alemseged said. "This type of preservation is unprecedented, particularly in a young individual whose vertebrae are not yet fully fused."

Primates share many features of the human spinal column and rib cage, but the human spine also reflects our distinctive mode of walking upright on two feet. Humans have fewer bones of the back than those of our closest primate relatives, and more vertebrae in the lower back, which allows us to walk effectively. When and how this pattern evolved has been unknown until now as complete sets of <a href="https://www.earth.com/video/prostate-stones-found-skeleton/">vertebrae</a> are rarely preserved.

"Selam has provided us the first glimpse into how our early ancestors' spines were organized," said Carol Ward, Professor of Pathology and Anatomical Sciences at the <a href="https://medicine.missouri.edu/">University of Missouri School of Medicine</a>, and lead author of the study.

The fossil was taken to the European <a href="http://www.esrf.eu/">Synchrotron Radiation Facility</a> in Grenoble, France, where Alemseged and the research team used high-resolution imaging technology to visualize the bones.

"This technology provides the opportunity to virtually examine aspects of the vertebrae otherwise unattainable from the original specimen," added Fred Spoor, a Professor of Evolutionary Anatomy in the Department of Biosciences at the <a href="https://www.ucl.ac.uk/">University College London</a> and a coauthor of the study.

The scans indicated that Selam had the distinctive thoracic-to-lumbar joint transition found in other fossils of human relatives, but the specimen is the first to show that, like modern humans, human’s earliest ancestors had only 12e thoracic vertebrae and twelve pairs of ribs. That is fewer than in most apes.

"This unusual early human configuration may be a key in developing more accurate scenarios concerning the evolution of bipedality and modern human body shape," said Thierra Nalley, an Assistant Professor of Anatomy at <a href="https://www.westernu.edu/">Western University of Health Sciences</a> in Pomona, California, who is also an author on the paper.

The configuration found in Selam marks a transition toward the type of spinal column that allows humans to be efficient, athletic walkers and runners, the university said.

"We are documenting for the first time in the fossil record the emergence of the number of the vertebrae in our history, when the transition happened from the rib-bearing vertebrae to lower back vertebrae, and when we started to extend the waist," Alemseged said. "This structure and its modification through time is one of the key events in the history of human evolution."

The study is published in the<a href="http://www.pnas.org/"> Proceedings of the National Academy of Sciences</a>.

--

By: <a href="mailto:dbeasley@earth.com">David Beasley </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source:.<a href="http://www.uchicago.edu/">University of Chicago</a>

Fossil reveals how the human spine originated

Portions of the human spine structure that enable efficient walking...

Great apes and humans split several hundred thousand years earlier than previously believed, and it happened in Europe not Africa, two new studies say.

Until now, researchers assumed ape and human lineages diverged five to seven million years ago and that the first pre-humans developed in <a href="https://www.earth.com/image/dusty-winds-western-africa/">Africa</a>.

Research by Madelaine Böhme of the <a href="https://www.uni-tuebingen.de/en/university.html">University of Tübingen </a>in Germany and Nikolai Spassov of the <a href="http://bas.bg/bulgarian-academy-of-science">Bulgarian Academy of Sciences</a> outline a new scenario for the beginning of human history.

The researchers analyzed the two known specimens of the fossil hominid Graecopithecus freybergi: a lower jaw from Greece and an upper premolar from Bulgaria. Using computer tomography, they visualized the internal structures of the fossils and demonstrated that the roots of premolars are widely fused.

"While great apes typically have two or three separate and diverging roots, the roots of Graecopithecus converge and are partially fused - a feature that is characteristic of modern humans, early humans and several pre-humans including Ardipithecus and Australopithecus,” said Böhme.

The lower jaw has additional dental root features, suggesting that the species Graecopithecus freybergi might belong to the pre-human lineage.

 "We were surprised by our results, as pre-humans were previously known only from sub-Saharan Africa," said Jochen Fuss, a Tübingen PhD student who conducted this part of the study.

Graecopithecus is several hundred thousand years older than the oldest potential pre-human from Africa, the six-to-seven million year old Sahelanthropus from Chad.

The researchers dated the Graecopithecus fossil sites in Greece and Bulgaria with physical methods and got a similar age for both fossils - 7.24 and 7.175 million years.


"This dating allows us to move the human-chimpanzee split into the Mediterranean area," said David Begun, a <a href="https://www.utoronto.ca/">University of Toronto</a> paleoanthropologist and co-author of the study. 

At about the same time that the Sahara desert formed in North Africa, a savannah biomed formed in Europe, the research found.

"The incipient formation of a desert in North Africa more than seven million years ago and the spread of savannas in Southern Europe may have played a central role in the splitting of the human and chimpanzee lineages," said Böhme.

The findings are described in two studies published in <a href="http://journals.plos.org/plosone/">PLOS ONE</a>.

[caption id="attachment_450700" align="aligncenter" width="225"]<a href="https://www.earth.com/wp-content/uploads/2017/05/140912.jpg"><img class="size-medium wp-image-450700" src="https://www.earth.com/wp-content/uploads/2017/05/140912-225x300.jpg" alt="" width="225" height="300" /></a> Photo: Wolfgang Gerber, University of Tübingen[/caption]

--

By: <a href="mailto:dbeasley@earth.com">David Beasley </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="https://www.utoronto.ca/">University of Toronto</a>

Photo: Wolfgang Gerber, University of Tübingen

Human-ape split occurred in Europe, not Africa

Great apes and humans split several hundred thousand years earlier...

Plants can detect the sounds of running water moving through pipes or in the soil, a new study found.

The ability to sense the sounds of water helps plants move their roots closer to toward the water source, according to the <a href="http://www.uwa.edu.au/">University of Western Australia</a> study.

Researchers used the common garden pea plant for the study, putting the plant into a container with two tubes at the base, providing options for which direction to grow its roots.

“We then exposed the plant to a series of sounds, including white noise, running water and then a recording of running water under each tube, and observed its behavior,” said lead researcher Monica Gagliano from UWA’s Centre of Evolutionary Biology.

The root systems grew toward the sound of running water, the study found.

“It also was surprising and extraordinary to see that the plant could actually tell when the sound of running water was a recording and when it was real and that the plant did not like the recorded sound,” Gagliano said.

When moisture was readily available in the <a href="https://www.earth.com/news/soil-co2-climate/">soil</a>, the plant did not respond to the sound of running water. 

“From this we begin to see the complexity of plant interactions with sound in using it to make behavioral decisions,” Gagliano said.

The study can help increase understanding of plant behavior, she added.

“It indicates that the invasion of sewer pipes by tree roots may be based on the plants ‘hearing’ water and shows that their perception of their surroundings is much greater and far more complex than we previously thought,” she said.

It can also help scientists studying noise pollution, Gagliano said.

“In the animal world there is a strong call to understand how acoustic pollution adversely affects populations,” she said. “But now we know plants also need to be part of these studies.”

--

By: <a href="mailto:dbeasley@earth.com">David Beasley, </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://www.uwa.edu.au/">University of Western Australia</a>

Study: plants can ‘hear’ running water

Plants can detect the sounds of running water moving through...

Fruit fly brains are tiny, but that doesn’t mean that they’re simple. In fact, the navigational center of a fruit fly’s brain is actually very sophisticated, according to a new study by scientists at the <a href="https://www.janelia.org/">Janelia Research Campus</a>.

Deep within each fruit fly’s brain is a doughnut-shaped structure where neurons and special nerve cells form a delicate compass. Part of the structure, a group of nerve cells called the ellipsoid body, form the needle. 

As a fruit fly travels, even delicate shifts in direction cause activity in the ellipsoid body that allow the fly to know exactly where it is at all times.

"It's a window into something that borders on cognition,” group leader <a href="https://www.janelia.org/lab/jayaraman-lab">Dr. Vivek Jayaraman</a> said in a press release.

The research team had determined this much as early as 2015, but continued their research into the structure of fruit fly brains. Now, they may have determined exactly how this miniscule compass actually works.

A “handlebar” of neurons sit above the ellipsoid body, and the two structures send signals back and forth. Because of its location and the delicate connection, the handlebar neurons can “steer” the ellipsoid body.

"Essentially you have a set of puppet strings by which you can pull the activity one way or another," Jayaraman said.

By genetically engineering the flies so that their neurons glowed when active and then watching them through a specialized microscope, the scientists were able to watch this interplay at work.

While the scientists are still not quite sure how the entire process works, they’ve gained a key to understanding the navigational center of fruit fly brains.

Understanding how navigation works in fruit fly brains could offer some insight into how humans are able to navigate their world so effectively, the scientists said.

The Janelia Research Campus is part of the <a href="http://www.hhmi.org/">Howard Hughes Medical Institute</a>, a philanthropic group that works to advance biomedical research and science education.

The group’s most recent research will be published today in the journal <a href="https://doi.org/10.7554/eLife.23496">eLife</a>.

—

By <a href="mailto:kcathey@earth.com">Kyla Cathey</a>, <a href="http://earth.com/staff">Earth.com</a> Staff Writer

Fruit fly brains are complex navigational tools

Fruit fly brains are tiny, but that doesn’t mean that...

Deep portions of Earth's mantle may be as hot now as they were more than 2.5 billion years ago, a new study found.

Researchers studied a set of rocks from the 90 million-year-old Tortugal Suite in Costa Rica and found magnesium concentrations as high as those in “komatiites” from The Archean Eon 2.5 to 4 billion years ago.

“Komatiites are basically superhot versions of Hawaiian-style <a href="https://www.earth.com/image/lava-flow-from-the-kilauea-volcano-in-hawaii/">lava flows</a>," said Esteban Gazel, <a href="https://www.vt.edu/">Virginia Tech</a> Assistant Professor of Geosciences, who led the study. "You can imagine a Hawaiian lava flow, only komatiites were so hot that they glowed white instead of red, and they flowed on a planetary surface with very different atmospheric conditions, more similar to Venus than the planet we live on today."

The study suggests that Earth may still be capable of producing komatiite-like melts. Tortugal lavas most likely originated from the hot core of the Galapagos mantle plume that started producing melts nearly 90 million years ago and has remained active ever since, the study said.

"What is really fascinating about this study is that we show that the planet is still capable of producing lavas as hot as during Archean time period," Gazel said. "Based on our results from Tortugal lavas, we think that mantle plumes are 'tapping' a deep, hot region of the mantle that hasn't cooled very much since the Archean. We think that this region is probably being sustained by heat from the crystallizing core of the planet."

Although the Tortugal Suite was discovered and documented more than 20 years ago, “It wasn't until now that we have the technology and experimental support to better understand the global implications of this location,” said Virginia Tech doctoral student Jarek Trela, first author of the study.

The new data, “offers tremendous opportunity to answer key questions regarding the accretion of the Earth, its thermal evolution, and the geochemical messages that mantle plumes bring to the surface of the planet,” Gazel added.

The study is published in the journal <a href="http://www.nature.com/ngeo/">Nature Geoscience</a>.

--

By: <a href="mailto:dbeasley@earth.com">David Beasley, </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="https://www.vt.edu/">Virginia Tech</a>

Image Credit: Professor Claude Herzberg of Rutgers University

Deep Earth may now be as hot as billions of years ago

Deep portions of Earth's mantle may be as hot now...

Coastal flooding will double in frequency over coming decades even with moderate amounts of sea-level rise, a new study says.

With only four to eight inches of sea level rise expected between now and 2050, coastal flooding will more than double, according to the study by from scientists from the <a href="https://www.usgs.gov/">U.S. Geological Survey</a> (USGS), the <a href="http://www.uic.edu/">University of Illinois at Chicago</a> and the <a href="http://www.hawaii.edu/">University of Hawaii</a>.

In most coastal regions, the amount of <a href="https://www.earth.com/news/rising-sea-levels-inland/">sea level</a> rise occurring in the coming decades is small, yet even gradual sea level rise can rapidly increase the frequency and severity of coastal flooding, according to the new study.

Previous studies of flooding caused by sea level rise focused on tide gauges and did not consider elevated water levels from waves leading to an underestimation of potential impact.

“Using models rather than individual tide gauges provides a comprehensive picture of the widespread vulnerability rather than at sparse points where observed data exist,” said lead author of the study, Sean Vitousek, who was a post-doctoral fellow at the USGS when he began this study. Vitousek is now a professor in the Department of Civil &amp; Materials Engineering at the University of Illinois at Chicago.

Tropical regions will see the greatest increase in flooding, according to the study.

The economies of in low-lying Pacific island nations will be damaged, along with many of the world's largest populated low-lying deltas (such as the Ganges, Indus, Yangtze, Mekong and Irrawaddy Rivers), the study found.

“In the Tropics, today’s 50-year water level event will occur every 5 years with just 10 cm of sea level rise,” said USGS geologist and study coauthor, Patrick Barnard.

Most tropical atoll islands are on average only 1-2 meters above present sea level, the study said.

“And even in the high tropical islands such as Hawaii, Guam, American Samoa, U.S. Virgin Islands, Indonesia, and others, the majority of the population and critical infrastructure is located on a narrow coastal fringe at low elevations (1-2 m above present sea level) and thus susceptible to this increased flood frequency,” said USGS geologist and coauthor, Curt Storlazzi.

The study, published in the journal <a href="http://www.nature.com/srep/">Nature Scientific Reports</a>, can help government climate adaptation efforts in Hawaii and other U.S. affiliated Pacific islands, said coauthor Chip Fletcher, Associate Dean and Professor at the School of Ocean and Earth Science and Technology at the University of Hawaii.

--

By: <a href="mailto:dbeasley@earth.com">David Beasley, </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="https://www.usgs.gov/">U.S. Geological Survey</a>

Rising sea levels will double coastal flooding

Coastal flooding will double in frequency over coming decades even...

Researchers have identified areas of the primate brain dedicated exclusively to analyzing social interactions.

The findings could help explain the origins of “theory of mind,” the human ability to understand what other people are thinking, <a href="https://www.rockefeller.edu/">Rockefeller University</a> said.

The researchers used functional magnetic resonance imaging (fMRI) to identify those parts of macaque monkeys' brains that become active when the animals watched different kinds of videos.

The team expected that areas containing specialized brain cells called mirror neurons, which fire when an animal performs an action such as grasping a stick or hitting a ball, or sees another animal performing the same action, would light up when the macaques watched other macaques playing with toys.

But the macaques' mirror neuron regions also showed activity when the animals watched their fellow monkeys interacting socially, and even when they watched objects colliding with other objects.

The findings suggest that the motor neuron system, which also exists in the human brain, could be more involved than previously thought in understanding a variety of both social and non-social interactions.

Those areas of the <a href="https://www.earth.com/news/facial-recognition-technology/">monkey’s</a> brain that respond selectively to specific visual shapes- faces, bodies, or objects got an extra boost when the animals watched videos of monkeys interacting with objects. It perked up even more in response to videos of monkey-on-monkey social interactions. 

This suggests that the same parts of the brain that are responsible for analyzing visual shapes might also be partly responsible for analyzing both physical and social interactions, the authors said.

The team also discovered that additional areas of the brain, far removed from those face- and body-selective areas, also lit up in response to social interactions. The researchers even identified a portion of the network that responded exclusively to social interactions, remaining nearly silent in their absence.

“That was both unexpected and mind-boggling," says researcher Winrich Freiwald, who added that no other study has shown evidence of a network in the brain going dark when denied its preferred input.

--

By: <a href="mailto:dbeasley@earth.com">David Beasley </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="https://www.rockefeller.edu/">Rockefeller University</a>

Monkey brain study may explain human thinking

Researchers have identified areas of the primate brain dedicated exclusively...

Small parrots called parrotlets use a technique called “wing-assisted hopping” to conserve energy when hopping from branch to branch, according to a new <a href="https://www.stanford.edu/">Stanford University</a> study.

The birds, who live from <a href="https://www.earth.com/image/scorpion-reef-gulf-mexico/">Mexico</a> to South America, use their wings as a booster engine during long hops from to branch to branch while foraging, the study found.

It requires less energy than simply flying, and is a strategy that could have been used by dinosaurs before they developed full flight, the authors said. 

Parrotlets can jump up to 20 cm without using their wings, but can reach up to 75 cm with a little wing help, lead author Diana D. Chin told the website <a href="https://motherboard.vice.com/en_us">Motherboard</a>.  

There were four parrots in the study and the force they used to lift off was measured using sensors in the branches.

The study, published in <a href="http://advances.sciencemag.org/content/3/5/e1603041">Scientific Advances</a> can lead to spinoff research on the evolution of foraging dinosaurs, Chin said.

"We modelled what would happen if a theropod combined a long jump with a partial wingbeat," she said. "Early dinos could have gotten more bang for their buck by adding that a partial wing beat." 

--

By: <a href="mailto:dbeasley@earth.com">David Beasley </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://advances.sciencemag.org/content/3/5/e1603041">Scientific Advances</a>, <a href="https://motherboard.vice.com/en_us">Motherboard</a>

Small parrots could explain how dinosaurs learned to fly

Small parrots called parrotlets use a technique called “wing-assisted hopping”...

Japan and China have successfully extracted a frozen fossil fuel called “combustible ice” from the seafloor off their coastlines, moving commercial development of the material closer to reality.

The official Chinese news agency Xinhua reported that the fossil fuel was successfully mined by a drilling rig operating in the <a href="https://www.earth.com/news/tropical-storm-aere-drifting-in-the-south-china-sea/">South China Sea</a> on Thursday. Chinese Minister of Land and Resources Jiang Daming declared the event a breakthrough moment for a potential  "global energy revolution."

Two weeks earlier, a drilling crew in Japan reported a similar successful operation off the Shima Peninsula.

However, experts warned that large-scale production could be many years away - and if not done properly could flood the atmosphere with climate-changing greenhouse gases.

Methane hydrate offers Japan the chance to reduce its reliance on imported fuels. It could also serve as a cleaner substitute for coal-burning power plants and steel factories China that have polluted much of the country with smog.

The South China Sea has become a focal point of regional political tensions as China has claimed huge swaths of disputed territory as its own. Previous sea oil exploration efforts by China met resistance, especially from Vietnam, but its methane hydrate operation was described as being outside the most hotly contested areas.

Methane hydrate has been found beneath seafloors and buried inside Arctic permafrost and beneath Antarctic ice. The United States and India are also researching technologies to capture the fuel.

Estimates of worldwide reserves range from 280 trillion cubic meters (10,000 trillion cubic feet) up to 2,800 trillion cubic meters (100,000 trillion cubic feet), according to the <a href="https://www.eia.gov/">U.S. Energy Information Administration</a>. 

By comparison, total worldwide production of natural gas was 3.5 billion cubic meters (124 billion cubic feet) in 2015, the most recent year available.

Methane hydrate reserves could meet global gas demands for 80 to 800 years at current consumption rates.

For decades, however, private and state-owned energy companies have been unable to extract the fuel at a profit. Extraction techniques, which can use large amounts of water or carbon dioxide, are expensive.

The industry consensus is that commercial development won't happen until at least 2030. Smaller scale output could happen as early as 2020, said Tim Collett, a scientist with the U.S. Geological Survey.

"The path to understanding when or if gas hydrates will be commercially produced will need many similar and more extended testing efforts," Collett told the <a href="http://hosted.ap.org/dynamic/stories/A/AS_CHINA_JAPAN_COMBUSTIBLE_ICE?SITE=AP&amp;SECTION=HOME&amp;TEMPLATE=DEFAULT&amp;CTIME=2017-05-19-05-48-55">AP.</a>

--

By: <a href="mailto:dbeasley@earth.com">David Beasley </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="http://hosted.ap.org/dynamic/stories/A/AS_CHINA_JAPAN_COMBUSTIBLE_ICE?SITE=AP&amp;SECTION=HOME&amp;TEMPLATE=DEFAULT&amp;CTIME=2017-05-19-05-48-55">AP</a>

Japan and China extract frozen fossil fuel from the sea floor

Japan and China have successfully extracted a frozen fossil fuel...

Scientists have discovered a refuge for coral reefs protected by the environment from climate change, according to a new study.

These “reefs of hope” are in northern Mozambique and the Quirimbas Islands, according to a study by the environmental group <a href="https://www.wcs.org/">WCS</a>.

“Northern Mozambique Quirimbas reefs have a variety of refugia, environmental variability, and high diversity that give these reefs a high potential to adapt to rapid climate change,” said Tim McClanahan, WCS Senior Conservation Zoologist and lead author of the study.

The first refuge is an environment that has enough variability for <a href="https://www.earth.com/news/hawaii-ban-sunscreens-reefs/">corals</a> to adapt but lacks temperature extremes that would kill them, the study said. A second is deeper, cooler water but with the full spectrum of light that allows many species to thrive and avoid heat stress.

The bad news is that the reefs are showing signs of overfishing, according to the study, published in journal <a href="https://eco-sphere.com/">Ecosphere</a>.

Many nearby reefs were not fished sustainably and fishers were therefore migrating to the second refuge to find profitable fishing, the research found.

Weak compliance with local fisheries laws needs to be reversed to maintain the fish that help to keep reefs healthy, the study said.

Sea urchins can damage corals if not controlled by predators such as triggerfish, while algae can suffocate corals unless kept in check by grazing fish species, WCS said.

The report recommends closing certain areas to fishing and enforcing regulations in the Quirimbas National Park, which was established many years ago, but has failed to implement restrictions. 

Research is showing that properly managing marine protected areas (MPAs) continues to remain a challenge due to insufficient personnel and expenditures needed to enforce management. Another recent<a href="https://newsroom.wcs.org/News-Releases/articleType/ArticleView/articleId/9933/Lack-of-Staffing-Funds-Prevent-Marine-Protected-Areas-from-Realizing-Full-Potential.aspx"> WCS-co-authored study</a> said widespread lack of personnel and funds are preventing MPAs from reaching their full potential.

--

By: <a href="mailto:dbeasley@earth.com">David Beasley </a><a href="https://www.earth.com/staff/">Earth.com</a> Staff Writer

Source: <a href="https://www.wcs.org/">WCS</a>

Study: “Reefs of hope’ adapt to climate change

Scientists have discovered a refuge for coral reefs protected by...

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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



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Flu viruses are more flexible than expected

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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.esa.int/">European Space Agency</a> features Kainji Lake, a reservoir on the Niger River.



In 1968, Kainji Lake was created by the construction of the Kainji Dam. The Niger River, the third longest in Africa, enters the lake in the north.&nbsp;



According to <a href="https://www.earth.com/news/rivers-in-the-american-west-are-a-lifesaving-resource-for-birds/">ESA</a>, the creation of the lake submerged Foge Island and the town of Bussa and permanently flooded other riverine settlements, leaving around 50,000 people displaced.&nbsp;



Large parts of Foge Island are temporarily exposed during low water tides, and the land is often used by migrating fishermen. Kainji Dam is a dam across the Niger River in Niger State of Central Nigeria. 



Wild mammals occur at relatively low densities due to illegal hunting. Lake Kainji has suffered a dramatic decline as a fishery due to the high numbers of artisanal and subsistence fisherfolk using the lake. It has been suggested that a period of closure, together with controlled fishing rights may help improve fish stocks.



Kainji Lake National Park is the oldest of its kind in Nigeria. The park contains three distinct areas: a part of the Kainji Lake, the Borgu Game Reserve to the west of the lake, and the Zugurma Game Reserve to the southeast. The park is home to around 65 mammal species, 350 bird species, and 30 species of reptiles and amphibians. 



Video/ Image Credit: European Space Agency&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.

Kainji Lake in north central Nigeria

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Today’s Video of the Day from <a href="https://www.igb.illinois.edu/">Carl R. Woese Institute for Genomic Biology</a> reveals how scientists can modify common crops like soybean, rice, and wheat to protect them from heat stress.



“We need to double crop production by 2050 to feed a growing global population, and not only are we not on track to do that, but climate change is further complicating things,” said Amanda Cavanagh, a lecturer at the University of Essex. 



The study is part of Realizing Increased Photosynthetic Efficiency (RIPE), an international research project that aims to develop food crops that turn the sun’s energy into food more efficiently.



“Using an engineering approach we designed multiple alternative metabolic pathways to photorespiration. Testing them in the field showed increases in productivity which led Amanda to significantly move the project forward by showing our engineered plants can withstand pretty extreme temperature stress,” said study co-author and RIPE researcher Paul South.&nbsp;



“As the climate changes and temperature stresses increase the pressure on our global food supply, farmers will need every tool available including engineering approaches like the synthetic biology used here to maintain safe and productive harvests.”



The experts tested plants modified to have more efficient photorespiration to see if they were better adapted to warmer temperatures.&nbsp;



The team found that the engineered plants produced 26 percent more biomass than the wild-type plants exposed to the same temperatures, and had 15 percent less yield loss under the higher temperatures.



Video Credit: Amanda Nguyen/University of Illinois



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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.

Designing crops that can beat the heat

[sendtonews key="QGPzYnXEtN-1712599-12187" type="single"] Today’s Video of the Day from Carl...

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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?

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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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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes the first comprehensive estimate of carbon density in the Saharan, Sahel, and Sudanian zones of Africa. In an effort to measure the amount of carbon stored across these drylands, a team of scientists used high-resolution satellite images and artificial intelligence to map nearly 10 billion individual trees. 



"The high spatial resolution (50 cm) combined with AI and field measurements used in this study is key to improving tree inventories in drylands," said Pierre Hiernaux, a French researcher working for NASA. "The ever-increasing availability of very high-resolution satellite imagery will make it possible to assess carbon pools and their dynamics at the individual tree level on a global scale."



"This study is exceptional because it is pioneering a type of approach that will revolutionize the monitoring of trees and forests on a global scale: in the short term, it will be possible to map the world's trees from the centre of the Amazon to our schoolyards," said <a href="https://www.inrae.fr/en">INRAE</a> researcher Jean-Pierre Wigneron.



"Many fields of application will become much more efficient and accurate, such as tracking carbon stocks, biodiversity, monitoring logging and protection against illegal forest degradation, in near real time.”



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.

Remote sensing will revolutionize the way we monitor trees

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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://www.nasa.gov/goddard">NASA Goddard</a> features a visual dataset of.methane emissions from wetlands across the globe. Atmospheric methane levels have reached record highs in recent years, and wetlands are a major source of these emissions.&nbsp;



"Methane is an important greenhouse gas that contributes substantially to global warming. On a molecule by molecule basis, methane is much more efficient at trapping heat than carbon dioxide, the main driver of warming," says NASA.



"Though human activities, including agriculture, oil and natural gas production and use, and waste disposal, collectively contribute the majority of methane to the atmosphere, about a third of total methane emissions comes from wetlands."&nbsp;



According to NASA, understanding methane emissions from wetlands and other natural sources is critically important for scientists and policymakers who are working to combat climate change by reducing emissions from human activities.



Video Credit: NASA Goddard



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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.

Wetlands are a major source of methane emissions

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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

[sendtonews key="0879czfG3k-1785905-12187" type="single"] Today’s Video of the Day from NASA...

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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

[sendtonews key="6HyfrAJTBI-1831843-12187" type="single"] Today’s Video of the Day from the...

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Today’s Video of the Day from <a href="https://www.stowers.org/">Stowers Institute for Medical Research</a> describes why experts are studying zebrafish to gain a better understanding of how the immune system responds to injury. Zebrafish have the ability to repair and regenerate organs.



“Organ regeneration offers an exciting opportunity for studying the immune system and to inquire why some species can regenerate organs like the heart or missing limbs while others like humans cannot,” explained Dr. Tatjana Piotrowski.



Zebrafish sensory organ hair cells are an ideal system to investigate the pathways and cell types involved in regeneration since they are easily destroyed with antibiotics and begin regenerating within five hours. This enabled the researchers to identify the exact timing and genetic programs for each anti-inflammatory macrophage activation state.&nbsp;



“Our hypothesis is that human macrophages do not receive the proper chemical activation 'cocktail' to instruct pro-regenerative processes,” said Dr. Nicolas Denans. “Identifying the molecular recipe of macrophage activation in zebrafish may one day enable us to design regenerative immunotherapies in humans.”&nbsp;&nbsp;&nbsp;



“The new evidence is a valuable resource for comparative studies on the genetic programs involved in macrophage-mediated repair and regeneration. In other words, different types of injuries may induce different kinds of inflammatory responses. We want to decipher whether this 'language' is universal or if there are a variety of dialects."



Video Credit: Stowers Institute for Medical Research&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.

How the immune system responds to injury

[sendtonews key="0dEcERCq61-2283382-12187" type="single"] Today’s Video of the Day from Stowers...

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Today's Video of the Day from <a href="https://www.nasa.gov/goddard">NASA Goddard</a> describes how record-breaking heat expressed itself around the world in 2022.



Scientists have determined that 2022 was the 5th warmest year since 1880. Furthermore, the last nine consecutive years have been the warmest on record.



From devastating floods and wildfires to natural disasters like Hurricane Ian, 2022 showed us yet again how a warming climate affects people across the globe.&nbsp;



"As we look back at 20:22 and years past, we see that each year we better understand the challenges we face and how important it is to meet them," says NASA.



Video/ Image Credit: NASA Goddard



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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.

2022 illustrated the consequences of a warming climate

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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



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.

Two distant planets may be "water worlds"

[sendtonews key="QIoVYJqRBi-2434608-12187" type="single"] Today's Video of the Day from NASA...

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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

[sendtonews key="JbW4VsY53O-1632195-12187" type="single"] Satellites reveal how Earth's systems are interconnected...

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...