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This desert moss has the potential to grow on Mars

The desert moss Syntrichia caninervis is a promising candidate for Mars colonization thanks to its extreme ability to tolerate harsh conditions lethal to most life forms. The moss is well known for its ability to tolerate drought conditions, but researchers now report that it can also survive freezing temperatures as low as 196 C, high levels of gamma radiation, and simulated Martian conditions involving these three stressors combined. In all cases, prior dehydration seemed to help the plants cope.
Sun, 30 Jun 2024 15:30:52 EDT

Investigating newly discovered hydrothermal vents at depths of 3,000 meters off Svalbard

Hydrothermal vents can be found around the world at the junctions of drifting tectonic plates. But there are many hydrothermal fields still to be discovered. During a 2022 expedition of the MARIA S. MERIAN, the first field of hydrothermal vents on the 500-kilometer-long Knipovich Ridge off the coast of Svalbard was discovered.
Fri, 28 Jun 2024 12:52:50 EDT

Tiny bright objects discovered at dawn of universe baffle scientists

A recent discovery by NASA's James Webb Space Telescope (JWST) confirmed that luminous, very red objects previously detected in the early universe upend conventional thinking about the origins and evolution of galaxies and their supermassive black holes.
Fri, 28 Jun 2024 12:52:41 EDT

Soft, stretchy electrode simulates touch sensations using electrical signals

A team of researchers has developed a soft, stretchy electronic device capable of simulating the feeling of pressure or vibration when worn on the skin. This device represents a step towards creating haptic technologies that can reproduce a more varied and realistic range of touch sensations for applications such as virtual reality, medical prosthetics and wearable technology.
Fri, 28 Jun 2024 12:52:35 EDT

Wireless receiver blocks interference for better mobile device performance

Researchers developed a new wireless receiver that can block strong interference signals at the earliest opportunity, which could improve the performance of a mobile device.
Fri, 28 Jun 2024 12:52:27 EDT

Ecologists reconstruct the history of biodiversity in the Indo-Australian archipelago and its rise as a hotspot

The Coral Triangle, also known as the Indo-Australian Archipelago, is renowned for having the greatest marine biodiversity on our planet. Despite its importance, the detailed evolutionary history of this biodiversity hotspot has remained largely a mystery. An international research team has now shed light on this history, reconstructing how biodiversity in the region has developed over the past 40 million years.
Fri, 28 Jun 2024 12:52:23 EDT

Climate change to shift tropical rains northward

Atmospheric scientists predict that unchecked carbon emissions will force tropical rains to shift northward in the coming decades, which would profoundly impact agriculture and economies near the Earth's equator. The northward rain shift would be spurred by carbon emissions that influence the formation of the intertropical convergence zones that are essentially atmospheric engines that drive about a third of the world's precipitation.
Fri, 28 Jun 2024 12:52:07 EDT

Creating supranormal hearing in mice

A new study has produced supranormal hearing in mice, while also supporting a hypothesis on the cause of hidden hearing loss in people.
Fri, 28 Jun 2024 12:51:51 EDT

Too many missing satellite galaxies found

Bringing us one step closer to solving the 'missing satellites problem,' researchers have discovered two new satellite galaxies.
Fri, 28 Jun 2024 12:49:50 EDT

New class of Mars quakes reveals daily meteorite strikes

An international team of researchers combine orbital imagery with seismological data from NASA's Mars InSight lander to derive a new impact rate for meteorite strikes on Mars. Seismology also offers a new tool for determining the density of Mars' craters and the age of different regions of a planet.
Fri, 28 Jun 2024 12:48:57 EDT

Analysis suggests 2021 Texas abortion ban resulted in increase in infant deaths in state in year after law went into effect

Researchers use statistical modeling to estimate infant deaths expected if one of the country's most stringent state abortion laws had not been enacted. The study estimates that infant deaths in Texas increased more than expected in the year following the state's 2021 ban on abortion in early pregnancy, especially among infants with congenital anomalies.
Thu, 27 Jun 2024 17:42:35 EDT

Light-controlled artificial maple seeds could monitor the environment even in hard-to-reach locations

Researchers have developed a tiny robot replicating the aerial dance of falling maple seeds. In the future, this robot could be used for real-time environmental monitoring or delivery of small samples even in inaccessible terrain such as deserts, mountains or cliffs, or the open sea. This technology could be a game changer for fields such as search-and-rescue, endangered species studies, or infrastructure monitoring.
Thu, 27 Jun 2024 17:22:42 EDT

Projected loss of brown macroalgae and seagrasses with global environmental change

Researchers predict that climate change will drive a substantial redistribution of brown seaweeds and seagrasses at the global scale. The projected changes are alarming due to the fundamental role seaweeds and seagrasses in coastal ecosystems and provide evidence of the pervasive impacts of climate change on marine life.
Thu, 27 Jun 2024 17:22:31 EDT

The density difference of sub-Neptunes finally deciphered

The majority of stars in our galaxy are home to planets. The most abundant are the sub-Neptunes, planets between the size of Earth and Neptune. Calculating their density poses a problem for scientists: depending on the method used to measure their mass, two populations are highlighted, the dense and the less dense. Is this due to an observational bias or the physical existence of two distinct populations of sub-Neptunes? Recent work argues for the latter.
Thu, 27 Jun 2024 17:22:26 EDT

Antarctic ice shelves hold twice as much meltwater as previously thought

Slush -- water-soaked snow -- makes up more than half of all meltwater on the Antarctic ice shelves during the height of summer, yet is poorly accounted for in regional climate models. The findings could have profound implications for ice shelf stability and sea level rise.
Thu, 27 Jun 2024 17:22:11 EDT

Ammonites' fate sealed by meteor strike that wiped out dinosaurs

Ammonites were not in decline before their extinction, scientists have found.
Thu, 27 Jun 2024 17:21:56 EDT

New mathematical model sheds light on the absence of breastfeeding in male mammals

Mathematicians ave put forward a hypothesis which suggests that the reason male mammals don't breastfeed might be driven by the rich community of microbes that lives in breast milk and which plays an important part in establishing the gut microbiome of the infant.
Thu, 27 Jun 2024 17:21:54 EDT

Long-standing marine mystery solved: How algae get nitrogen to grow

Scientists shed light on an unexpected partnership: A marine diatom and a bacterium that can account for a large share of nitrogen fixation in vast regions of the ocean. This symbiosis likely plays a key role for global marine nitrogen fixation and productivity, and thus uptake of carbon dioxide. The newly-discovered bacterial symbiont is closely related to the nitrogen-fixing Rhizobia which live in partnership with many crop plants and may also open up new avenues for engineering nitrogen-fixing plants.
Thu, 27 Jun 2024 17:21:48 EDT

Groundbreaking discovery: Zinc can make crop yields more climate-resilient

Climate change, drought, increased temperature and other stressors challenge agricultural sustainability. Researchers have now made an unexpected discovery: zinc plays a pivotal role in the plant response to abiotic stress. This groundbreaking discovery not only sheds light on the intricate mechanisms of plant growth but also holds promise for revolutionizing crop resilience, especially in legume-based agriculture.
Thu, 27 Jun 2024 17:21:39 EDT

Last surviving woolly mammoths were inbred but not doomed to extinction

The last population of woolly mammoths was isolated on Wrangel Island off the coast of Siberia 10,000 years ago, when sea levels rose and cut the mountainous island off from the mainland. A new genomic analysis reveals that the isolated mammoths, who lived on the island for the subsequent 6,000 years, originated from at most 8 individuals but grew to 200--300 individuals within 20 generations. The researchers report that the Wrangel Island mammoths' genomes showed signs of inbreeding and low genetic diversity but not to the extent that it can explain their ultimate (and mysterious) extinction.
Thu, 27 Jun 2024 17:21:01 EDT

Common plastics could passively cool and heat buildings with the seasons

By restricting radiant heat flows between buildings and their environment to specific wavelengths, coatings engineered from common materials can achieve energy savings and thermal comfort that goes beyond what traditional building envelopes can achieve.
Thu, 27 Jun 2024 17:20:53 EDT

Bird flu stays stable on milking equipment for at least one hour

H5N1 virus in unpasteurized milk is stable on metal and rubber components of commercial milking equipment for at least one hour, increasing its potential to infect people and other animals.
Thu, 27 Jun 2024 17:20:39 EDT

New twists on tornadoes: Earth scientist studies why U.S. has so many tornadoes

Across the Midwest during the warmer months, studying the sky for signs of storms and tornadoes becomes one of the most popular pastimes. Working at the intersection of climate science and meteorology and using modeling, scientists are looking at the big picture of what causes severe storms and tornadoes -- and what dictates where they occur.
Thu, 27 Jun 2024 17:20:31 EDT

Wolves reintroduced to Isle Royale temporarily affect other carnivores, humans have influence as well

In a rare opportunity to study carnivores before and after wolves were reintroduced to their ranges, researchers found that the effects of wolves on Isle Royale have been only temporary. And even in the least-visited national park, humans had a more significant impact on carnivores' lives.
Thu, 27 Jun 2024 17:20:25 EDT

We date, marry people who are attractive as we are, new analysis finds

Men and women were good at judging their own attractiveness, and tended to partner up with people who were similarly attractive.
Thu, 27 Jun 2024 17:20:14 EDT

Prehistoric 'Pompeii' discovered: Most pristine trilobite fossils ever found shake up scientific understanding of the long extinct group

Researchers have described some of the best-preserved three-dimensional trilobite fossils ever discovered. The fossils, which are more than 500 million years old, were collected in the High Atlas of Morocco and are being referred to by scientists as 'Pompeii' trilobites due to their remarkable preservation in ash.
Thu, 27 Jun 2024 17:19:55 EDT

Under pressure: How comb jellies have adapted to life at the bottom of the ocean

Researchers have studied the cell membranes of ctenophores ('comb jellies') and found they had unique lipid structures that allow them to live under intense pressure.
Thu, 27 Jun 2024 17:19:49 EDT

Why the harsh Snowball Earth kick-started our earliest multicellular ancestors

Why did multicellularity arise? Solving that mystery may help pinpoint life on other planets and explain the vast diversity and complexity seen on Earth today, from sea sponges to redwoods to human society. A new article shows how specific physical conditions -- especially ocean viscosity and resource deprivation -- during the global glaciation period known as Snowball Earth could have driven eukaryotes to turn multicellular.
Thu, 27 Jun 2024 17:18:27 EDT

Climate change and sea level rise pose an acute challenge for cities with combined sewer systems

Older coastal cities, like Philadelphia, New York and Boston are at risk of being inundated by untreated sewage during floods. Due in part to the design of their combined sewer systems and in part due to sea level rise, these cities could be facing a growing public health crisis as climate change also drives more extreme precipitation. The group recently published research that modeled the potential extent of the problem in a section of the coastal city of Camden, New Jersey, and the effectiveness of one proposed intervention to help protect these communities.
Thu, 27 Jun 2024 17:02:48 EDT

Researchers find genetic stability in a long-term Panamanian hybrid zone of manakin birds

We often think of species as separate and distinct, but sometimes they can interbreed and create hybrids. When this happens consistently in a specific area, it forms what's known as a hybrid zone. These zones can be highly dynamic or remarkably stable, and studying them can reveal key insights into how species boundaries evolve -- or sometimes blur. Researchers now describe a hybrid zone between two manakin species in Panama that has overall remained relatively stable over the past 30 years.
Wed, 26 Jun 2024 17:36:00 EDT

Simple new process stores CO2 in concrete without compromising strength

By using carbonated -- rather than still -- water during the concrete manufacturing process, a team of engineers has discovered a new way to store carbon dioxide (CO2) in the ubiquitous construction material.
Wed, 26 Jun 2024 17:35:58 EDT

Solar technology: Innovative light-harvesting system works very efficiently

Researchers are reporting progress on the road to more efficient utilization of solar energy: They have developed an innovative light-harvesting system.
Wed, 26 Jun 2024 15:22:21 EDT

Researchers address ocean paradox with 55 gallons of fluorescent dye

Researchers have directly measured cold, deep water upwelling via turbulent mixing along the slope of a submarine canyon in the Atlantic Ocean.
Wed, 26 Jun 2024 15:22:19 EDT

For healthy adults, taking multivitamins daily is not associated with a lower risk of early death

A large analysis of data from nearly 400,000 healthy U.S. adults followed for more than 20 years has found no association between regular multivitamin use and lower risk of early death.
Wed, 26 Jun 2024 15:22:05 EDT

From takeoff to flight, the wiring of a fly's nervous system is mapped

Although a fly's motor neurons are few, it performs remarkable aerial and terrestrial feats. A wiring diagram recently created of the motor circuits in the central nervous system of the fruit fly is providing detailed information on how the nerve coordination of leg movements differs from that controlling the wings. Such studies reveal the unexpected complexity of the fly's tiny motor system. They also advance the understanding of how the central nervous system in animals coordinates individual muscles to carry out a variety of behaviors.
Wed, 26 Jun 2024 15:22:03 EDT

A chip-scale Titanium-sapphire laser

With a single leap from tabletop to the microscale, engineers have produced the world's first practical Titanium-sapphire laser on a chip, democratizing a once-exclusive technology.
Wed, 26 Jun 2024 15:21:56 EDT

Precision instrument bolsters efforts to find elusive dark energy

Dark energy -- a mysterious force pushing the universe apart at an ever-increasing rate -- was discovered 26 years ago, and ever since, scientists have been searching for a new and exotic particle causing the expansion. Physicists combined an optical lattice with an atom interferometer to hold atoms in place for up to 70 seconds -- a record for an atom interferometer -- allowing them to more precisely test for deviations from the accepted theory of gravity that could be caused by dark energy particles such as chameleons or symmetrons. Though they detected no anomalies, they're improving the experiment to perform more sensitive tests of gravity, including whether gravity is quantized.
Wed, 26 Jun 2024 15:21:50 EDT

The science of procrastination

Understanding why we delay tasks may help reclaim productivity.
Wed, 26 Jun 2024 15:21:38 EDT

Almonds, pottery, wood help date famed Kyrenia shipwreck

Researchers have identified the likeliest timeline of the famous Hellenistic-era Kyrenia shipwreck, discovered and recovered off the north coast of Cyprus in the 1960s.
Wed, 26 Jun 2024 15:21:36 EDT

Microrobot-packed pill shows promise for treating inflammatory bowel disease in mice

Engineers have developed a pill that releases microscopic robots, or microrobots, into the colon to treat inflammatory bowel disease (IBD). The experimental treatment, given orally, has shown success in mice. It significantly reduced IBD symptoms and promoted the healing of damaged colon tissue without causing toxic side effects.
Wed, 26 Jun 2024 15:21:31 EDT

AI generated exam answers go undetected in real-world blind test

Experienced exam markers may struggle to spot answers generated by Artificial Intelligence (AI), researchers have found.
Wed, 26 Jun 2024 15:21:20 EDT

How do our memories last a lifetime? New study offers a biological explanation

A new study by a team of international researchers has uncovered a biological explanation for long-term memories. It centers on the discovery of the role of a molecule, KIBRA, that serves as a 'glue' to other molecules, thereby solidifying memory formation.
Wed, 26 Jun 2024 15:21:18 EDT

Mechanical computer relies on kirigami cubes, not electronics

Researchers have developed a kirigami-inspired mechanical computer that uses a complex structure of rigid, interconnected polymer cubes to store, retrieve and erase data without relying on electronic components. The system also includes a reversible feature that allows users to control when data editing is permitted and when data should be locked in place.
Wed, 26 Jun 2024 15:21:15 EDT

First case of Down syndrome in Neanderthals documented in new study

A new study documents the first case of Down syndrome in Neanderthals and reveals that they were capable of providing altruistic care and support for a vulnerable member of their social group.
Wed, 26 Jun 2024 15:21:08 EDT

Future risk of coral bleaching set to intensify globally

Researchers have projected future marine heatwaves will cause coral reefs to be at severe risk of bleaching for longer periods than previously seen.
Wed, 26 Jun 2024 15:21:06 EDT

Shocked quartz reveals evidence of historical cosmic airburst

Researchers continue to expand the case for the Younger Dryas Impact hypothesis. The idea proposes that a fragmented comet smashed into the Earth's atmosphere 12,800 years ago, causing a widespread climatic shift that, among other things, led to the abrupt reversal of the Earth's warming trend and into an anomalous near-glacial period called the Younger Dryas.
Wed, 26 Jun 2024 15:20:57 EDT

Pillars of creation star in new visualization from NASA's Hubble and Webb telescopes

Made famous in 1995 by NASA's Hubble Space Telescope, the Pillars of Creation in the heart of the Eagle Nebula have captured imaginations worldwide with their arresting, ethereal beauty. Now, NASA has released a new 3D visualization of these towering celestial structures using data from NASA's Hubble and James Webb space telescopes. This is the most comprehensive and detailed multiwavelength movie yet of these star-birthing clouds.
Wed, 26 Jun 2024 15:20:53 EDT

Iceland's volcano eruptions may last decades

Scientists predict from geochemical data that Iceland is entering a new volcanic era that will last for decades, possibly centuries. Under an hour's drive from the country's capital city, the ongoing eruptions pose considerable risks for economic disruption, and they leave evacuated communities uncertain of a possible return.
Wed, 26 Jun 2024 15:20:33 EDT

Surprising phosphate finding in NASA's OSIRIS-REx asteroid sample

Early analysis of the asteroid Bennu sample returned by NASA's OSIRIS-REx mission has revealed dust rich in carbon, nitrogen, and organic compounds, all of which are essential components for life as we know it. Dominated by clay minerals, particularly serpentine, the sample mirrors the type of rock found at mid-ocean ridges on Earth. The magnesium-sodium phosphate found in the sample hints that the asteroid could have splintered off from an ancient, small, primitive ocean world.
Wed, 26 Jun 2024 15:19:25 EDT

'A hearty debate' concludes plant-based meat alternatives are healthier for your heart than meat

Even though there is substantial variability in the contents and nutritional profiles of plant-based meat alternatives (PBMAs), the nutritional profiles tend to reflect a heart-healthy dietary pattern. A review article of the available studies directly comparing the impact of plant-based and animal-based meats consistently suggests that the plant-based alternatives improve cardiovascular risk factors.
Wed, 26 Jun 2024 00:53:07 EDT

Non-stop flight: 4,200 km transatlantic flight of the Painted Lady butterfly mapped

In October 2013 a researcher made a surprising discovery of Painted Lady Butterflies on the Atlantic beaches of French Guiana -- a species not typically found in South America. This unusual sighting prompted an international study to investigate the origin of these butterflies.
Tue, 25 Jun 2024 22:17:40 EDT

Your future medications could be personalized for you on a 3D printer

Scientists are helping to develop standards and safety protocols that would allow pharmacies to print drugs onsite at a dosage best for you.
Tue, 25 Jun 2024 20:56:49 EDT

Wildfires increasingly threaten oil and gas drill sites, compounding potential health risks

More than 100,000 oil and gas wells across the western U.S. are in areas burned by wildfires in recent decades, a new study has found, and some 3 million people live next to wells that in the future could be in the path of fires worsened by climate change.
Tue, 25 Jun 2024 20:56:44 EDT

New evidence for how heat is transported below the sun's surface

Solar physicists have revealed the interior structure of the sun's supergranules, a flow structure that transports heat from the sun's hidden interior to its surface. The researchers' analysis of the supergranules presents a challenge to the current understanding of solar convection.
Tue, 25 Jun 2024 20:56:38 EDT

Moving objects precisely with sound

Researchers have succeeded in directing floating objects around an aquatic obstacle course using only soundwaves. Their novel, optics-inspired method holds great promise for biomedical applications such as noninvasive targeted drug delivery.
Tue, 25 Jun 2024 20:56:34 EDT

Telltale greenhouse gases could signal alien activity

If aliens modified a planet in their solar system to make it warmer, we'd be able to tell. A new study identifies the artificial greenhouse gases that would be giveaways of a terraformed planet.
Tue, 25 Jun 2024 20:56:32 EDT

Robots face the future

Researchers have found a way to bind engineered skin tissue to the complex forms of humanoid robots. This brings with it potential benefits to robotic platforms such as increased mobility, self-healing abilities, embedded sensing capabilities and an increasingly lifelike appearance. Taking inspiration from human skin ligaments, the team included special perforations in a robot face, which helped a layer of skin take hold.
Tue, 25 Jun 2024 20:50:41 EDT

Marsquakes may help reveal whether liquid water exists underground on red planet

If liquid water exists today on Mars, it may be too deep underground to detect with traditional methods used on Earth. But listening to earthquakes that occur on Mars -- or marsquakes -- could offer a new tool in the search.
Tue, 25 Jun 2024 20:49:21 EDT

Geologists expect Chang'e-6 lunar surface samples to contain volcanic rock and impact ejecta

On June 25, China's Chang'e-6 (CE-6) lunar probe is set to return to Earth, carrying the first surface samples collected from the farside of the Moon. In anticipation of this historic event, scientists are publishing their predictions for the unique materials that may be found in the CE-6 samples.
Mon, 24 Jun 2024 12:56:33 EDT

Myths about intermittent fasting, debunked

Research shows that the increasingly popular weight-loss strategy is safe. Intermittent fasting has become an increasingly popular way to lose weight without counting calories. And a large body of research has shown it s safe. Still, several myths about fasting have gained traction.
Mon, 24 Jun 2024 12:56:28 EDT

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