science wire

Two massive asteroids hit Earth around 35.65 million years ago, but did not lead to any lasting changes in the Earth's climate, according to a new study by UCL researchers. The rocks, both several miles wide, hit Earth about 25,000 years apart, leaving the 60-mile (100km) Popigai crater in Siberia, Russia, and the 25-55 mile (40-85km) crater in the Chesapeake Bay, in the United States - the fourth and fifth largest known asteroid craters on Earth.

New study proposes that some of the minerals seen on Mars today may have formed in liquid CO2 instead of water. Dry river channels and lake beds on Mars point to the long-ago presence of a liquid on the planet's surface, and the minerals observed from orbit and from landers seem to many to prove that the liquid was ordinary water.

Scientists and engineers on campus and Lab wished NASA's Europa Clipper mission a bon voyage on October 14 as it launched from Earth toward Jupiter's frozen moon, Europa.

As the UN meets this week to finalise the Global Plastics Treaty, researchers warn that the agreement could fail to address one of the biggest threats to marine environments-microplastics.

On 29 October 2024, an episode of torrential rains shook the Valencian Community, leaving behind a trail of devastation and numerous flooded municipalities.

The satellite imagery was frightening: a powerful low-pressure system swirling approximately 300 miles off the coast of Washington.

According to the fossil record, cetaceans - whales, dolphins and their relatives - evolved from four-legged land mammals that returned to the oceans beginning some 50 million years ago.

The world's snow and ice regions are at risk of irreversible loss and damage. The warning was made in a new report from an international team of more than 50 leading cryosphere scientists, including Professor Chris Stokes in our Department of Geography.

The NISAR mission will help researchers get a better understanding of how Earth's surface changes over time, including in the lead-up to volcanic eruptions like the one pictured, at Mount Redoubt in southern Alaska in April 2009.

Tree planting has been widely touted as a cost-effective way of reducing global warming, due to trees' ability to store large quantities of carbon from the atmosphere. But, writing in the journal Nature Geoscience , an international group of scientists, including from the University of Cambridge,  argue that tree planting at high latitudes will accelerate, rather than decelerate, global warming.

A SWOT data visualization shows water on the northern side of Greenland's Dickson Fjord at higher levels than on the southern side on Sept.

Our researchers have explored how Arctic marine species could be impacted by climate change and rising sea temperatures in the future.

The Permafrost Tunnel north of Fairbanks, Alaska, was dug in the 1960s and is run by the U.S. Army's Cold Regions Research and Engineering Laboratory. It is the site of much research into permafrost - ground that stays frozen throughout the year, for. Credit: NASA/Kate Ramsayer" Earth's far northern reaches have locked carbon underground for millennia.

The scientists' wide-scale acoustic mapping technique could help track vulnerable keystone species. There is power in numbers, or so the saying goes.

Ancient "gold" bug fossils, infused with pyrite, have been identified as a new species of arthropod.

New research centre will transform understanding of damaging winds, hail and flash floods in Canada A global leader in wind engineering and climate resiliency for 60 years, Western University is changing the way Canadians think about the country's most dangerous and damaging weather events.

On its way up the side of Jezero Crater, the agency's latest Red Planet off-roader peers all the way back to its landing site and scopes the path ahead.

A team of international scientists, including two researchers from The Australian National University (ANU), will soon sail to the Japan Trench to discover more about what causes tsunamis.

Polar bears in some parts of the high Arctic are developing ice buildup and related injuries to their feet, apparently due to changing sea ice conditions in a warming Arctic. While surveying the health of two polar bear populations, researchers found lacerations, hair loss, ice buildup and skin ulcerations primarily affecting the feet of adult bears as well as other parts of the body.

Newly appointed geography professor Benjamin Gwinneth uses innovative geochemical methods, such as measuring fecal molecules, to understand how climate variability shaped ancient populations.

Where is the space to generate the legally required amount of photovoltaic electricity in Austria by 2030? A research Eleven terawatt hours (TWh) is the amount of electricity to be generated from photovoltaic systems in Austria in 2030.

MIT Research Scientist Jason Soderblom describes how the NASA mission will study the geology and composition of the surface of Jupiter's water-rich moon and assess its astrobiological potential.

A SpaceX Falcon Heavy rocket carrying NASA's Europa Clipper spacecraft lifts off from Launch Complex 39A at NASA's Kennedy Space Center in Florida at 12:06 p.m. EDT on Monday, Oct.

A SpaceX Falcon Heavy rocket with the Europa Clipper spacecraft aboard is seen at Launch Complex 39A as preparations continue for the mission, Sunday, Oct.

Permafrost, the thick layer of perennially frozen ground that covers much of the Arctic, slows down the migration of Arctic rivers, according to a new Caltech study.

Study of the U.S. shows homes in the South and Southwest could use more aid for energy costs, due to a growing need for air conditioning in a warming climate. A growing portion of Americans who are struggling to pay for their household energy live in the South and Southwest, reflecting a climate-driven shift away from heating needs and toward air conditioning use, an MIT study finds.

Far fewer minerals are named after women than men-researchers fear gap in naming convention rate will never close Study: Gender in mineral names: A record of past and ongoing gender diversity, equity

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The Hunga Tonga underwater volcano was one of the largest volcanic eruptions in history, and now, two years later, new research from The Australian National University (ANU) has revealed its main trigger.

Climate change is forcing people to adapt to changed environmental conditions. How they do so is crucial.

A mysterious type of iron-rich magma entombed inside extinct volcanoes is likely abundant with rare earth elements and could offer a new way to source these in-demand metals, according to new researc

Sixteen years to the day Hurricane Katrina devastated Louisiana, Ida slammed into the Gulf Coast state's seaport town of Port Fourchon as a Category 4 cyclone on Aug.

A summer class teaches PhD students and early-career archaeologists ceramic petrography, revealing the origins and production methods of past societies.