Marilyn Perkins
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Scientists discover long-lost giant rivers that flowed across Antarctica up to 80 million years agoLarge flat surfaces carved by ancient rivers deep beneath East Antarctica are influencing how ice flows across the continent today, according to a new study.
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Antarctic sea ice collapse linked to a mysterious spike in ocean saltSatellite imagery has revealed a yet-to-be-explained rise in the Southern Ocean's salinity. It could be a key factor in the decline of the region's sea ice.
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World's largest iceberg, A23a, is disintegrating into thousands of pieces alongside penguin refugeEarth from space A new satellite photo has revealed that the "megaberg," A23a, is beginning to break apart, spawning thousands of smaller ice chunks around the Antarctic island of South Georgia.
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NASA satellites show Antarctica has gained ice despite rising global temperatures. How is that possible?An abrupt change in Antarctica has caused the continent to gain ice. But this increase, documented in NASA satellite data, is a temporary anomaly rather than an indication that global warming has reversed, scientists say.
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What's hiding under Antarctica's ice?Antarctica is the fifth-largest continent by size, so what's hiding under its massive sheaths of ice?
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Wilkes Land crater: The giant hole in East Antarctica's gravitational field likely caused by a meteoriteResearchers have proposed many origins for a gravity anomaly in Wilkes Land, East Antarctica, but the latest evidence suggests the subglacial hole is an impact crater measuring 315 miles across.
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Scientists create new map showing ice-free Antarctica in more detail than ever beforeBedmap3 is the most fine-grain map to date of the landscape beneath Antarctica's ice. Scientists created it using more than 60 years' worth of data from satellites, ships and dog-drawn sleds.
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Lake Vostok: The 15 million-year-old lake buried miles beneath Antarctica's iceBuried several miles beneath East Antarctica's ice, Lake Vostok is one of the largest freshwater lakes on Earth, rivaling Lake Ontario in terms of size and volume.
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Scientists discover hidden 'plumbing' that's driving Antarctic ice sheet into the oceanMaps created by combining different models of glaciers and ice sheets reveal the way water is flowing deep beneath Antarctica's ice.
