Search Results for: antarctica
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Planetary ScienceA meteor may have exploded over Antarctica 430,000 years ago
Tiny spherules recovered from a mountaintop suggest a space rock broke apart midflight and sprayed debris across thousands of kilometers.
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Planetary ScienceEarth sweeps up 5,200 tons of extraterrestrial dust each year
Thousands of micrometeorites collected from Antarctica come from both comets and asteroids, a new study suggests.
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ClimateCollapse may not always be inevitable for marine ice cliffs
Runaway collapse of ice cliffs could dramatically boost sea level. But these cliffs may not be so vulnerable, new simulations suggest.
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ClimateA trek under Thwaites Glacier’s ice shelf reveals specific risks of warm water
An underwater autonomous craft collected the first data on the chemistry of seawater eroding the icy underbelly of Antarctica’s Thwaites Glacier.
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EarthEarth’s oceans are storing record-breaking amounts of heat
2020 was just the latest in a series of record-breaking years for ocean heat.
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Earth50 years ago, scientists clocked the speed of Antarctic ice
Today’s instruments offer a more precise view, and reveal the effects of climate change.
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ClimateGlobal warming may lead to practically irreversible Antarctic melting
Simulations suggest that even if the Paris climate goals are met, melting Antarctica ice will still cause sea levels to rise by more than 2 meters.
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Planetary ScienceNASA’s Perseverance rover split CO2 to make breathable air on Mars
An oxygen-making experiment on Perseverance shows that astronauts will one day be able to make air to breathe and, better yet, rocket fuel.
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EarthGreenland and Antarctica are gaining ice inland, but still losing it overall
Inland ice accumulation is not enough to counteract the amount of ice melting off Antarctica and Greenland into the oceans, satellite data show.
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PaleontologyThe first frog fossil from Antarctica has been found
An ancient amphibian from Antarctica gives new insight into when the continent got so cold.
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AnimalsPenguin poop spotted from space ups the tally of emperor penguin colonies
High-res satellite images reveal eight new breeding sites for the world’s largest penguins on Antarctica, including the first reported ones offshore.
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SpaceAn Antarctic ice dome may offer the world’s clearest views of the night sky
The highest point in East Antarctica could be an ideal place for an optical telescope, a new study finds.