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antarctica

Down to Earth With: Underwater cave explorer Jill Heinerth

Jill Heinerth has trekked farther into caves than any woman in history and logged more than 7,000 dives across every continent and up to roughly 140 meters underwater — recreational divers only reach depths up to 40 meters. She has dived inside icebergs in Antarctica, beneath the Sahara Desert, and in the turquoise waters of the Bahamas.

02 Dec 2016

Down to Earth With: Volcanologist Kayla Iacovino

When Kayla Iacovino enrolled as a freshman at Arizona State University in 2005, she thought she might become an astronaut. But, after a field trip to outcrops in northern Arizona during her first semester, she became hooked on geology.

28 Oct 2016

Antarctic no place to hide during end-Cretaceous extinction

The end-Cretaceous extinction is famous for killing off the dinosaurs, but many other species perished as well. A new study in Nature Communications of marine fossils found in the Antarctic indicates that the extinction event was just as deadly for creatures in the polar regions.

07 Oct 2016

Ice (Re)Cap: August 2016

From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.

13 Aug 2016

Iron meteorites likely hidden below Antarctic ice

Despite the fact that meteorites fall relatively evenly across the surface of the planet, most meteorites retrieved by humans have come from Antarctica. This is because meteorites are easily buried and preserved in Antarctic ice; over time, the ice melts and exposes the dark-colored fallen rocks for relatively easy recovery on the continent’s white surface. But iron-rich meteorites, common among specimens found in other parts of the planet, are unusually rare in Antarctica. Researchers may now have figured out why.

14 Jul 2016

Ice (Re)Cap: June 2016

From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.

06 Jun 2016

Giant icebergs spur carbon storage in Southern Ocean

A new study shows that giant icebergs floating in the Southern Ocean around Antarctica may be playing a larger role in carbon sequestration and Earth’s global carbon cycle than previously thought.

19 May 2016

Looking for life in coldest, driest Antarctica

Antarctica is nicknamed the “White Continent,” but one site — University Valley in the continent’s McMurdo Dry Valleys region — has remained virtually snow-free for more than 150,000 years, making it the coldest, driest desert on Earth. For the past four years, researchers involved in NASA’s ASTEP (Astrobiology Science and Technology for Exploring Planets) program searched for signs of life in the valley because it is thought to closely resemble the northern polar regions of Mars where the Phoenix spacecraft landed in 2008. In a new study, though, the team reports that it came up empty-handed, confirming that University Valley is indeed one of the least-habitable places on Earth.

05 May 2016

Ice (Re)Cap: April 2016

From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.

13 Apr 2016

Down to Earth With: Glaciologist Ted Scambos

As a young boy, Ted Scambos was fascinated by space and technology, and spent many hours watching aircraft take off and land at the Air Force bases where his father, a pilot, was stationed. For his birthday or Christmas, he says he would often ask for a new telescope or a book about the planets. By sixth grade, Scambos had decided to become an astronomer. But by high school, his attention shifted from outer space to chemistry, and he set up an elaborate chemistry set in his parents’ basement. As Scambos’ interests evolved, he gradually realized that although astronomy and chemistry were both very hands-on disciplines at first, the deeper he delved, the more esoteric they became. Instead, he found himself drawn to geology, especially after discovering how much he enjoyed fieldwork.

11 Mar 2016

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