Hydrogen released during large impacts might have boosted Mars’s surface temperature above freezing for thousands or even millions of years, enabling liquid water to flow over the Red Planet.
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As the Arctic Warms, These Rivers Are Slowing Down
The Arctic is warming up, but instead of large rivers migrating faster, they’re actually slowing down because of shrubification.
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Biden Administration Considers Unprecedented Solution to Colorado River Crisis
As Colorado River Basin states prove unable to reach a consensus in reducing their water consumption, the U.S. Department of the Interior is investigating an option that defies the Law of the River.
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Wildfire Smoke Destroys Ozone
Smoke aerosols from large wildfires are the perfect reaction surface for chlorine chemicals, speeding their transformation from ozone-friendly forms to reactive ones.
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Felt Reports Could Shake Up Earthquake Response
Firsthand accounts of earthquake impacts could aid in identifying people who require help as well as increasing safety in some areas.
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Hydrogen May Push Some Exoplanets off a Cliff
High-pressure reactions of hydrogen and iron could explain gaps in the distribution of exoplanets.
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One Surface Model to Rule Them All?
For the first time, scientists have forged a nearly all-encompassing model of Earth’s surface evolution over the past 100 million years.
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Wisconsin Stalagmite Records North American Warming
A speleothem has revealed rapid periods of warming across the interior of the continent during the last glacial period, corresponding to similar events recorded in Greenland ice.
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Spring and Sewage Are in the Air Near San Diego
Sea spray can transport sewage-contaminated waters inland, potentially exposing those living kilometers from the beach.
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Tides Ripple Across Earth’s Plasma “Donut”
Interactions between lunar gravity and the terrestrial magnetic field may cause a 90° offset from the Moon’s position in its orbit.