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Last 24 Hours
Life in Cosmos May Be Rare After All
- Paul Davies, Scientific American
Has a 5th Force of Nature Been Found?
- Edwin Cartlidge, Nature
How the Black Death Devastated England
- Maev Kennedy, Guardian
Rare Evolutionary Event Detected
- University of Texas

Last 7 Days
Life in Cosmos May Be Rare After All
- Paul Davies, Scientific American
Why Antarctica's Sea Ice Is Spreading
- Belinda Smith, Cosmos
Humanities Ph.Ds Should Leave the U.S.
- Scott Gibson, Chronicle