Search Results for: antarctica
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1,403 results
1,403 results for: antarctica
- Animals
Hidden Depths: Antarctic krill startle deep-ocean scientists
The first camera lowered 3,000 meters to the seabed off the coast of Antarctica videoed what biologists identify as the supposedly upper-ocean species of Antarctic krill.
- Astronomy
In the Beginning: More early clues for life at home, out there
Astronomers move closer to understanding how life arose on Earth and how it could arise elsewhere.
- Earth
Climate fix could deplete polar ozone
Scientists seeking to cool Earth’s climate by injecting sulfuric acid droplets high in the atmosphere might trim rising temperatures but could also destroy much of the ozone in polar regions, a new study suggests.
- Earth
Climate clues in ice
A kilometers-long ice core from Antarctica has been recording climate information for the past 800,000 years and has revealed a three millennia–long period when carbon dioxide levels in the air were lower than any previously measured.
- Earth
Slip, Slide, Shake
Analyses of GPS and seismic data about one of Antarctica’s largest and most dynamic glaciers provide new insights into the ice stream’s lurching march to the sea.
- Paleontology
Ancient burrows
Triassic-era sediments unearthed in Antarctica reveal the well-preserved lair of a four-legged, mammal-like reptile.
- Earth
Unintended consequences
A full recovery of the ozone hole over Antarctica in the coming years could significantly boost warming of the atmosphere over and around the icy continent.
- Space
Martian soil hints at water, nutrients
The first chemical analysis of dirt by the Mars Phoenix Lander supports the notion that liquid water flowed on the Red Planet at some point.
- 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.
