A look at the chemistry behind dry ice and its dangers
Editorial Roundup: Excerpts from recent editorials in newspapers in the US and abroad
World Food Prize event in Iowa confronts divisive issues of biotech crops and global warming
Decades after the assassination of President John F. Kennedy, a Virginia politics expert says he has uncovered new evidence that disproves the official number of shots fired that fateful day in Dallas.
Jupiter-bound craft that ran into problem after Earth fly-by is operating normally again
51 years after historic send-off into space, John Glenn bids Scott Carpenter 'Godspeed'
Nobel Peace Prize goes to chemical-weapons watchdog; Some Syrians say it won't stop bloodshed
Scott Carpenter, pioneering astronaut and 2nd American in orbit, dies at age 88
Hundreds of thousands of years ago, cavemen recycled, scientists at Israel conference say
German museum, Holocaust survivor's heirs bring dispute over ancient gold tablet to NY court
Livestock pits open for western SD ranchers to dispose of cattle killed in blizzard
Shades of 'Jurassic Park;' Ancient mosquito's last blood supper trapped in fossil, study says
Tropical Storm Priscilla forms in the eastern Pacific south of Tropical Storm Octave
Apple is seeking a patent for technology to flip a falling phone in midair or use built-in jets to cushion its landing.
After Kenya mall attack, parents struggle to help children cope with trauma
Patty Konietzky thought the small purple lesion on her husband's ankle was a spider bite. But when the lesion quickly spread across his body like a constellation, she knew something wasn't right.
Gov. Martin O'Malley is touting a record year for producing and planting native bay oysters in Maryland.
31 people across Florida infected by bacteria found in salt water this year; 10 have died
Federal government shutdown means Antarctic research stations close as research season begins