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Birds could signal mass extinction

(PhysOrg.com) -- The first detailed measurements of current extinction rates for a specific region have shown that birds are the best group to use to track the losses. The study also reveals Britain may be ...

dateOct 05, 2010 in Ecology
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Getting WISE About Nemesis

Is our Sun part of a binary star system? An unseen companion star, nicknamed 'Nemesis,' may be sending comets towards Earth. If Nemesis exists, NASA's new WISE telescope should be able to spot it.

dateMar 11, 2010 in Astronomy
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