Columbia University

Tropical plankton invade Arctic waters

For the first time, scientists have identified tropical and subtropical species of marine protozoa living in the Arctic Ocean. Apparently, they traveled thousands of miles on Atlantic currents and ended up ...

dateJul 24, 2012 in Earth Sciences
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XENON100 sets record limits for dark matter

Scientists from the XENON collaboration announced a new result from their search for dark matter. The analysis of data taken with the XENON100 detector during 13 months of operation at the Gran Sasso Laboratory (Italy) provided ...

dateJul 20, 2012 in General Physics
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When the world ended in ice

(Phys.org) -- A mile or so of glacial ice covering much of North America and plowing down from the north once terminated in the New York metropolitan area, at a front stretching roughly from exit ...

dateJul 03, 2012 in Earth Sciences
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Do urban 'heat islands' hint at trees of future?

City streets can be mean, but somewhere near Brooklyn, a tree grows far better than its country cousins, due to chronically elevated city heat levels, says a new study. The study, just published in the journal ...

dateApr 24, 2012 in Environment
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