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Archaeology

Green reapers

Agriculture's rise sparked widespread use of green stone beads as fertility charms and as protection against supernatural forces, scientists propose.

Planetary Science

Surprise found in comet dust

Scientists find an odd mineral that could offer clues to the solar system's origins.

Life

Wine find

Cell tests suggest that resveratrol, the substance that seems to account for the healthful effects of red wine, might have antiobesity effects, too.

Health & Medicine

Good news for coffeeholics

When lifestyle factors like smoking were taken into account, coffee drinkers had lower death rates than their non-drinking peers, according to a study of more than 120,000 people.