The earth experienced its biggest mass extinction about 250 million years ago, an event that wiped out an estimated 95% of marine species and 70% of land species. New research shows that this mass extinction did more than ...
Archaeology
Nov 23, 2006
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A technique used since the 1930s to estimate the abundance of fish has shown for the first time that enforcement patrols are effective at reducing poaching of elephants, African buffaloes and black rhinos in the Serengeti ...
Other
Nov 23, 2006
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A particularly resilient type of carbon from the first plants to regrow after the last ice age – and that same type of carbon from all the plants since – appears to have been accumulating for 11,000 years in the forests ...
Earth Sciences
Nov 23, 2006
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Ordinarily, losing almost all of one's instruments would be considered a severe setback to any scientist. But when Maya Tolstoy, a marine geophysicist at the Lamont-Doherty Earth Observatory, a member of the Earth Institute ...
Earth Sciences
Nov 23, 2006
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Earth's interior is not a benign world that only stores the geologic history of our planet. Geologists now see the normally assumed placid inner Earth as a dynamic environment filled with exotic materials and substances roiling ...
Earth Sciences
Nov 23, 2006
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Two International Space Station crew members wrapped up a 5-hour, 38-minute spacewalk from the Pirs docking compartment airlock at 12:55 a.m. EST Thursday. The spacewalk included a golf shot that merited a high-flying birdie ...
Space Exploration
Nov 23, 2006
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