Earth
- Humans
Cold spells were dark times in Eastern Europe
Cooler periods coincided with conflicts and disease outbreaks, a tree-ring study spanning the last millennium finds.
- Earth
Glaciers carve path for future buildup
Previously sculpted landscapes accumulate ice more quickly than steep valleys.
- Earth
Quakes may bring nearby rocks closer to rupture
Lab studies could explain how a seemingly stable geologic fault can fail.
- Earth
Antarctic subglacial drilling effort suspended
A British-led team has called off this season’s campaign to penetrate Lake Ellsworth.
- Earth
West Antarctica warming fast
A reconstructed temperature record from a high-altitude station shows an unexpectedly rapid rise since 1958.
- 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.
- Life
Early life forms may have been terrestrial
A controversial theory suggests that at least some of the earliest widespread complex life forms lived on land.
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- Science & Society
Descending to the Challenger Deep
Director James Cameron reveals the science of his deep-sea exploration.
- Life
Among bass, easiest to catch are best dads
Recreational fishing may be inadvertent evolutionary force, favoring cautious fish over better caretakers of the young.
- Life
Immune disease an added blow to fungus-ridden bat populations
Rare immune complication previously seen only in people devastates animals that had appeared to evade white nose syndrome.
