Search Results for: antarctica
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1,385 results
- Earth
‘Fossil’ mountains entombed by ice
Cold temperatures have kept a buried Antarctic range fresh for hundreds of millions of years.
- Chemistry
Melting icebergs fertilize ocean
Releasing extra iron into the water boosts carbon dioxide uptake by plankton.
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Freon: Destroying the ozone layer?
Scientists discovered in the 1970s that chlorofluorocarbons such as Freon were hurting Earth’s ozone layer.
- Humans
Marking penguins for study may do harm
Metal flipper bands used to tell birds apart hamper survival and reproduction, a 10-year study finds.
- Earth
Ozone hole on the mend
Researchers claim to see atmospheric healing more than a decade earlier than a detectable uptick was expected.
- Space
Laser proposed to deflect space junk
A ground-based device would use light to push debris off a collision course.
- Earth
Germy with a chance of hail
Aerial microbes can trigger precipitation and may influence global warming.
- Earth
Oceanographers with flippers
Tracking seal dives off Antarctica reveals seafloor troughs that affect ocean circulation.
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Basic research generates jobs and competitiveness
Trained as a mechanical engineer in India, Subra Suresh researched the interfaces between engineering, biology and materials science before becoming dean of engineering at MIT and, as of October, director of the U.S. National Science Foundation. In February in Washington, D.C., at the annual meeting of the American Association for the Advancement of Science, Suresh […]
- 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.
- Physics
Negative temperature, infinitely hot
Physicists propose using ultracold atoms to create a thermodynamics puzzle routinely in the laboratory.
- Earth
Antarctic shoal breaks the ice
Instruments on a massive berg help pinpoint a previously unreported undersea ridge.
