Search Results for: antarctica
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1,394 results
1,394 results for: antarctica
- Earth
Howdy, neighbor!
About 800 million years ago, East Antarctica, now one of the coldest regions on Earth, abutted what is now Death Valley, Calif., one of the hottest.
- Earth
Subglacial lakes flood, glaciers speed up
Floods that occasionally surge from immense lakes trapped beneath the Antarctic ice sheet can significantly affect the flow rate of overlying glaciers, a new study shows.
- Space
Water-ice deposits found beneath Martian hills
Using radar from an orbiting spacecraft to penetrate the hidden recesses of Mars, planetary prospectors have uncovered vast reserves of water-ice buried beneath rocky debris.
- Earth
Early asteroids unexpectedly crusty
Two meteorites retrieved from West Antarctica, fragments of an ancient asteroid, contain a type of rock commonly found in Earth’s crust but previously unseen in meteorites.
- Earth
Antarctica is getting warmer too
Satellite data show most of the continent is following worldwide trend.
- Tech
Watching Earth for 25 years
The Landsat 5 satellite launched in 1984 with a mission to orbit and image Earth's surface for three years. Still in orbit, the satellite has continuously documented changes in landscape.
- Space
Frozen cosmic fingerprints
Researchers claim to find evidence of 11th century supernovas and the solar cycle in an ice core.
- Planetary Science
Antarctic ecosystem holds unusual microbes
Long isolated deep under a glacier, life thrives in dark, salty water by breathing iron and eating sulfates.
- Chemistry
Methane-making microbes thrive under the ice
Antarctica’s ice sheets could hide vast quantities of the greenhouse gas, churned out by a buried ecosystem.
- Earth
Ice drilling nets shrimpy surprise
Underwater camera captures an Antarctic crustacean, as a serendipitous part of a larger ice shelf study.
- Space
Famous Martian meteorite younger than thought
The famous fragment of Mars, once proposed to hold signs of extraterrestrial life, is still pretty old. But the rock appears to have formed about 400 million years later than earlier analyses indicated.
- Earth
Gravity lows mark burial sites of ancient tectonic plates
Dips in Earth's gravitational field are tied to 'slab graveyards'
