The time frame in which U.S. rivers move most of their sediment has compressed significantly, which could have implications for water treatment, aquatic habitats, erosion, and harmful algal blooms.
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Archaea Survived Enceladus-Like Conditions in Lab
Enceladus’s ocean is extremely alkaline and low on carbon dioxide, but one terrestrial extremophile made it work.
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Eaton Wildfire Exposed Millions to a “Cocktail of Chemicals”
Compared to a nearby wildfire that primarily burned vegetation, the smoke plume from the urban Eaton Fire contained 3 times as much arsenic and 50 times as much lead.
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Twin Spacecraft Ready to Head for a Martian Escapade
A pair of probes have taken a circuitous path to Mars but are now ready to leave their “loiter” orbit for a 10-month cruise to the Red Planet.
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Antarctica’s Only Flowering Plants Take Opposite Paths Under Experimental Warming
A 7-year field experiment showed Antarctica’s native grass and pearlwort reworking their internal plumbing in contrasting ways as temperatures shifted.
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In Northeastern North America, Alpine Zones Are Turning Green
Using satellite data, scientists have detected where once-stable alpine ecosystems are transforming into greener, shrubbier places.
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The Secrets of Acid Salt Lakes
These stunning bodies of water—saltier than seawater and nearly as acidic as lemon juice—can teach us more about where life can survive, on Earth and beyond.
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Was the Moon-Forming Impact Squishy or Crunchy?
A new computer simulation adds a crust to the Earth-smashing planet Theia, showing how a proto-Moon could form from the leftovers.
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Where Did Formaldehyde Rain Down on Mars? Almost Everywhere.
More formaldehyde rained down in places that were already wet and favorable for prebiotic chemistry.
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A Rock Avalanche Buried an Arctic Glacier. Was Climate Change to Blame?
Degrading permafrost and earlier small quakes likely weakened a rock slope until it collapsed and buried an Arctic glacier in tons of rock.