Search Results for: antarctica
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1,391 results
1,391 results for: antarctica
- Humans
Eruption early in human prehistory may have been more whimper than bang
If Hollywood’s right, the apocalypse will be brutal. Aliens, nuclear war, zombies, plague, enslavement by supersmart robots — none of them are good endings. Some archaeologists, however, believe an apocalypse has already come and gone. About 75,000 years ago, they say, a monster volcanic eruption nearly wiped out humankind, leaving behind only a few thousand people to […]
- Earth
Big Antarctic ice sheet appears doomed
Warming climate is expected to trigger the sudden retreat of a partially floating glacier on the continent’s western side by 2100.
- Animals
Native pollinators boost crop yields worldwide
Farms with crops from coffee to mangoes don’t get the best yields if they rely solely on honeybees.
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Letters
Dark matter inspiration On reading Tom Siegfried’s editorial “Dark matter nothing to fear, if it’s there or not” (SN: 5/19/12, p. 2):As into the universe I did stare I met a particle that wasn’t there It wasn’t there again today Oh, I wish it would go away.Tom Derderian, Winthrop, Mass. Reality bits Regarding “Bits of […]
- Planetary Science
Scientists probe fresh Martian meteorite
Rock holds clues to Red Planet’s atmosphere and surface conditions.
- Tech
Antarctic test of novel ice drill poised to begin
Any day now, a team of 40 scientists and support personnel expects to begin using a warm, high pressure jet of water to bore a 30 centimeter hole through 83 meters of ice. Once it breaks through to the sea below, they’ll have a few days to quickly sample life from water before the hole begins freezing up again. It's just a test. But if all goes well, in a few weeks the team will move 700 miles and bore an even deeper hole to sample for freshwater life that may have been living for eons outside even indirect contact with Earth’s atmosphere.
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March: American heat vs. global temps
Even as global temperatures have been climbing throughout much of the past century, atypical warm and cool spells have seesawed regionally around the planet. March 2012 exemplified such exaggerated trends. Although the month set some 15,000 daily warming records in the United States, globally this past March was the coolest since 1999. The National Climatic Data Center reported these trend data April 16.
- Astronomy
Onward and Skyward
With new efforts aimed at the stars, China seeks to revive its astronomical reputation.
- Earth
Stronger storms may destroy ozone
Extra water vapor churned high into the atmosphere by climate change–fueled tempests could trigger destructive chemical reactions.
- Life
Crabs hither, shrimp thither
Biologists document surprising differences among deep-sea animals at hydrothermal vent fields.
- Earth
13th century volcano mystery may be solved
Indonesian volcano may be the culprit in the biggest eruption of the last seven millennia.
