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Earth Sciences Jul 31, 2024

Underwater mapping reveals new insights into melting of Antarctica's ice shelves

An international research team—including scientists from the University of East Anglia (UEA)—deployed an unmanned submersible beneath the Dotson Ice Shelf in West Antarctica. The underwater vehicle, "Ran," was programmed ...

Earth Sciences Jul 31, 2024

Giant waves, monster winds and Earth's strongest current: Why the Southern Ocean is a global engine room

The Southern Ocean is wild and dynamic. It experiences Earth's strongest winds and largest waves. It is home to city-sized icebergs and the biggest ocean current on the globe, as well as tiny turbulent flows that fit inside ...

Astronomy Jul 31, 2024

NASA smacked a spacecraft into an asteroid—and learned details about its 12-million-year history

NASA's DART mission—Double Asteroid Redirection Test—was humanity's first real-world planetary defense mission.

Environment Jul 31, 2024

The climate is changing so fast, we haven't seen how bad extreme weather could get

Extreme weather is by definition rare on our planet. Ferocious storms, searing heat waves and biting cold snaps illustrate what the climate is capable of at its worst. However, since Earth's climate is rapidly warming, predominantly ...

Space Exploration Jul 31, 2024

Fly-around observation images of space debris released

The Japan Aerospace Exploration Agency (JAXA) has advanced the Commercial Removal of Debris Demonstration (CRD2) Phase I project. Under this initiative, the demonstration satellite ADRAS-J, developed by Astroscale Japan Inc., ...

Earth Sciences Jul 31, 2024

Can geoengineering protect Earth's icesheets?

It's time to take a thorough, more serious look at using geoengineering to protect the planet's icesheets, according to a group of scientists who have released a new report examining the issue. Glacial geoengineering is an ...

Earth Sciences Jul 31, 2024

Space hurricanes swirl in the Southern Hemisphere, mostly in summer

Space hurricanes are a recently discovered geomagnetic phenomenon in which plasma interacts with Earth's magnetosphere, the area of space dominated by Earth's magnetic field. Spiral arms of plasma, hundreds of kilometers ...

Earth Sciences Jul 31, 2024

Recent volcanic 'fires' in Iceland began with vast magma pooling just beneath the surface, scientists report

Scientists from UC San Diego's Scripps Institution of Oceanography have detected geochemical signatures of magma pooling and melting beneath the subsurface during the "Fagradalsfjall Fires," that began on Iceland's Reykjanes ...

Environment Jul 31, 2024

How AI and satellite imaging are helping detect wildfires in Colorado before they grow

A new artificial intelligence program will help identify wildfires as small as an acre by scanning images taken by weather satellites orbiting about 22,000 miles above the Earth's surface.

Earth Sciences Jul 31, 2024

Study catalogs the most frequently used words in the archive of AGU journal article titles

Scientific studies have filled the pages of AGU journals for more than a century. These articles reveal how the study of geophysics has evolved alongside technology and societal interests and they tell the story of our expanding ...

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