147 articles from MONDAY 12.2.2024

Drought may drive deadly amphibian disease, researchers find

Pumpkin toadlets are in trouble. Progressively severe droughts are disrupting the microbiomes of the thumbnail-sized orange frogs, potentially leaving them vulnerable to a deadly fungal disease, according to a new study by an international research team. The finding suggests that abnormal rainfall patterns, which are expected to worsen due to climate change and deforestation, may upset mutually...

Scientists identify water molecules on asteroids for the first time

Using data from the retired Stratospheric Observatory for Infrared Astronomy (SOFIA)—a joint project of NASA and the German Space Agency at DLR—Southwest Research Institute scientists have discovered, for the first time, water molecules on the surface of an asteroid. Scientists looked at four silicate-rich asteroids using the FORCAST instrument to isolate the mid-infrared spectral signatures...

Nutrients direct intestinal stem cell function and affect aging

The capacity of intestinal stem cells to maintain cellular balance in the gut decreases upon aging. Researchers have discovered a new mechanism of action between the nutrient adaptation of intestinal stem cells and aging. The finding may make a difference when seeking ways to maintain the functional capacity of the aging gut.

Love is more complex than '5 love languages,' says expert

The "5 Love Languages" popularized by Gary Chapman are often mentioned when discussing relationships, but this Valentine's Day one Virginia Tech psychologist suggests taking a different approach to fostering and nurturing high-quality, loving relationships.

Increased rainfall threatens UK sea urchins: Study

Sea urchins exposed to diluted seawater for long periods show signs of physical deterioration, according to scientists from the British Antarctic Survey, the University of Cambridge, and the Scottish Association for Marine Science. Their study also found that even slight changes in salinity—or saltiness—trigger changes in urchin behavior as they try to cope with their new conditions.

The Space Shuttle That Fell to Earth review – the finest possible tribute to the astronauts who lost their lives

This moving, thorough analysis of what went wrong when seven Nasa crew members died 20 years ago doesn’t waste a moment. It’s a full, fitting memorial that’s not a minute too longThe three-part documentary The Space Shuttle That Fell to Earth marks the 20th anniversary of the Columbia disaster, when “one of the most complex machines ever built by the human race” disintegrated on the...

How to create safe spaces with and for Black girls

In 2018, as a graduate student, Assistant Professor Misha Inniss-Thompson worked alongside four Black girls and colleagues at Vanderbilt University to co-found the Black Girl Magic Crew, an afterschool program for Black adolescent girls aimed at supporting and celebrating their talents, identity development, and wellness. As the community coalesced, Inniss-Thompson and her collaborators documented...

Bizarre snake-like worm's secrets revealed in CT scans

Amphisbaenians are strange creatures. Like worms with vertebrae, scales, a large central tooth and sometimes small forearms, these reptiles live underground, burrowing tunnels and preying on just about anything they encounter, not unlike a miniature version of the monstrous sandworms from "Dune."

Meet NASA's twin spacecraft headed to the ends of the Earth

Two new miniature NASA satellites will start crisscrossing Earth's atmosphere in a few months, detecting heat lost to space. Their observations from the planet's most bone-chilling regions will help predict how our ice, seas, and weather will change in the face of global warming.

Archaeologists discover oldest known bead in the Americas

University of Wyoming archaeology Professor Todd Surovell and his team of collaborators have discovered a tube-shaped bead made of bone that is about 12,940 years old. The bead, found at the La Prele Mammoth site in Converse County, is the oldest known bead in the Americas.

Traces of Stone Age hunter-gatherers discovered in the Baltic Sea

In autumn 2021, geologists discovered an unusual row of stones, almost 1 km long, at the bottom of Mecklenburg Bight. The site is located around 10 kilometers off Rerik at a 21-meter water depth. The approximately 1,500 stones are aligned so regularly that a natural origin seems unlikely.

Chemists create an emission molecular thermometer

Future technologies rely on phenomena that were previously considered the exclusive domain of theoretical physics or chemistry. For example, the approach to devices with high-density information storage arose when chemists discovered single-molecule magnets—unusual complexes of transition metals and lanthanides. In addition, several lanthanide compounds exhibit temperature-dependent luminescence...

Astronauts from NASA's Expedition 71 to conduct research aboard space station

Studies of neurological organoids, plant growth, and shifts in body fluids are among the scientific investigations that NASA astronauts Matthew Dominick, Michael Barratt, Jeanette Epps, and Tracy C. Dyson will help support aboard the International Space Station as part of Expedition 71. The crew members are targeting launch to the space station in February and March.

Researchers studying ocean transform faults, describe a previously unknown part of the geological carbon cycle

This study reports widespread mineral carbonation of mantle rocks in an oceanic transform fueled by magmatic degassing of CO2. The findings describe a previously unknown part of the geological carbon cycle in transform faults that represent one of the three principal plate boundaries on Earth. The confluence of tectonically exhumed mantle rocks and CO2-rich alkaline basalt formed through limited...