Search Results for: antarctica
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1,391 results
1,391 results for: antarctica
- 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
Lopsided lights
Simultaneous snapshots reveal that northern and southern auroras aren’t always alike.
- Climate
Acidifying ocean may stifle phytoplankton
Chemical changes in seawater make a key nutrient less available to these organisms.
- Earth
When trees grew in Antarctica
Fossils of trees that grew in Antarctica millions of years ago suggest a growth pattern much different than modern trees.
- Life
One ocean, four (or more) killer whale species
Killer whales may be at least four species, a new study of mitochondrial DNA shows.
- 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 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.
- Earth
Comet likely culprit in Tunguska blast
Analysis of shuttle plume movement suggests Tunguska event could have caused clouds over London.
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I, Mold
Conquering the rising tide of infection is hindered by the many similarities between humans and fungi.
- Space
Frozen cosmic fingerprints
Researchers claim to find evidence of 11th century supernovas and the solar cycle in an ice core.
- 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.
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Engineering a cooler Earth
Researchers brainstorm radical ways to counter climate change.
