Asteroid 2012 DA14, thought to be about 45 meters in diameter, passed within 17,200 miles of Earth today.
Researchers have now spotted more than 90 percent of the so-called "planet buster" asteroids in nearby orbits and none poses a threat to Earth. But thousands of midsize bodies remain to be found.
A user posts a fake news piece to CNN's iReport news hub. It stays live for 22 hours before someone realizes it must surely not be true.
Daredevil asteroid 2014 RC slid by close to Earth Sunday, but it may have left a parting gift in the form of a meteorite crater in Nicaragua.
The B612 Foundation highlights the fact that asteroids come a-knockin' 3 to 10 times more frequently than previously thought. But don't freak out; most explode too high up to cause damage on the ground.
To, well, celebrate Earth Day, April 22, three former astronauts will claim they have evidence that remote parts of the Earth have endured 3 to 10 times more large-scale asteroid strikes than has been revealed.
In an effort to avoid a potential apocalypse, the space agency is holding a contest to get people to help it discover deadly asteroids.
Slooh.com will broadcast the passing of Near-Earth Asteroid 2000 EM26 as the Olympics take place in Russia. Almost a year to the day, a different asteroid slammed into that country's town of Chelyabinsk.
The first meeting of an international group tasked with figuring out how to react to asteroids that threaten our very existence is set for next week.
A new study suggests we should expect an asteroid strike every decade or two. And one scientist warns that the last asteroid to pass by us wasn't even noticed until it had gone.