Top news for December 21, 2008

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Earth is coated in ancient space dust that could be from the moon

NASA Asteroid Impact Mission Triggers Surprise Avalanche of Space Boulders

Archaeologists Find Maya City in an ‘Empty Zone’ of the Yucatán Map

What Was the Manhattan Project?

1,800-Year-Old Spices Are Earliest Evidence of Curry Making in Southeast Asia

Listeria Outbreak Has Left 5 Hospitalized, 3 Dead In Washington State

Phoenix Records Three-Plus Weeks Above 110 Degrees: Here’s Where Else Daily Records Have Fallen

Israel PM Netanyahu Gets Emergency Pacemaker, Here’s What AV Heart Block Is

Can Firebreaks Help Save Madagascar’s Lemurs?

Meteor Shower Strikes As Venus Meets Mercury: The Night Sky This Week