Scope Exam Cuts Colon Cancer Death
Disputed Dinosaur Fossil Auctioned
Tropical Storm Alberto Weakens
Millions Look Skyward at Eclipse
'Ring of Fire': Rare Eclipse Coming

A simple, cheaper exam of just the lower part of the bowel can cut the risk of developing colon cancer or dying of the disease, a large federal study finds. Many refuse the costly, unpleasant complete test.
A dinosaur dispute is brewing between the Mongolian government and an American auction house, which sold a fossil of a fearsome Tyrannosaurus Rex relative despite a court order not to.
Tropical Storm Alberto hovered off the South Carolina and Georgia coasts, canceling tourist cruises, producing showers and serving as a reminder that the 2012 Atlantic hurricane season is coming.
Skywatchers from Mount Fuji to the Grand Canyon enjoyed a treat: the moon nearly blotting out the sun to create a dramatic "ring of fire" over a narrow strip of eastern Asia and the western U.S.
Sunrises and sunsets dazzle, but they'll have a special ring to them for people in the western U.S. and eastern Asia: The moon will slide across the sun, blocking everything but a blazing halo of light.

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