Search Results for: antarctica
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1,394 results
1,394 results for: antarctica
- 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.
- Earth
Subglacial lakes may not be isolated ecosystems
Large volumes of water may occasionally flow between the lakes that lie deep beneath Antarctica's kilometers-thick ice sheet.
- Chemistry
Were Viking landers blind to life?
The Viking landers may have missed potential signs of life when they explored Mars in 1976.
- Earth
Ozone hole might not recover until the year 2065
The ozone-free zone that develops high in the atmosphere over Antarctica each summer as the result of the presence of chlorine- and bromine-containing chemicals may not heal until 15 years later than previously projected.
- Earth
Satellite makes finest map yet of Antarctica
Using data gathered by a satellite launched almost 3 years ago, scientists have assembled the most comprehensive high-resolution map of Antarctica that's ever been made.
- Earth
Cold and Deep: Antarctica’s Lake Vostok has two big neighbors
Trapped beneath Antarctica's kilometers-thick ice sheet are two immense bodies of water that may harbor ecosystems that have been isolated for millions of years.
- Ecosystems
Antarctic birds are breeding later
Rising global temperatures are causing Arctic birds to breed earlier in the spring, but for Antarctic birds, the reverse is true.
- Life
Massive count a drop in the bucket
As the decade-long Census of Marine Life totes up thousands of new species, it leaves much yet to discover in the world’s oceans.
