Surface volatiles—chemical substances that easily become gases or fluids at relatively low temperatures and pressures—are transported into Earth through subduction zones, with some being transported into the deep mantle and ...
Earth Sciences
Apr 7, 2026
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14
There is a place in northern Chile, 3,500 meters above sea level in the Andean Altiplano, where almost nothing survives. The Salar de Pajonales is a salt flat of savage extremes temperatures swinging from −23°C to 26°C, solar ...
Planetary Sciences
Mar 29, 2026
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223
In the forests of the southeastern United States, dense tree cover dominates most landscapes. That's why the Appalachian Trail is sometimes nicknamed "The Green Tunnel." But avid hikers know that often in the Southeast, they'll ...
Earth Sciences
Mar 2, 2026
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524
Earth's surface is covered by more than a dozen tectonic plates, and in subduction zones around the world—including the Japanese Islands—plates converge and dense oceanic plates sink into Earth's interior. These regions, ...
Earth Sciences
Feb 6, 2026
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9
New findings from NASA's Perseverance rover have revealed evidence of wave-formed beaches and rocks altered by subsurface water in a Martian crater that once held a vast lake—considerably expanding the timeline for potential ...
Astrobiology
Jan 27, 2026
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238
The La Venta fossil site in Colombia is home to a rich fossil record, yielding a particularly diverse set of vertebrate fossil assemblages. The giant terror bird (phorusrhacid) and caiman—a large crocodile-like reptile—were ...
Millions of eared grebes visit Great Salt Lake to rest and refuel en route to their winter homes on the Pacific Coast each fall, along with 250 other bird species throughout the year. That's about 10 million individual birds ...
Ecology
Jul 3, 2025
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41
The pristine samples from asteroid Ryugu returned by the Hayabusa2 mission on December 6, 2020, have been vital to improving the understanding of primitive asteroids and the formation of the solar system. The C-type asteroid ...
Planetary Sciences
Jun 23, 2025
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