When asteroid 2004 BL86 passed near Earth on January 26, it wasn't alone. A small moon came along for the ride.
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.
The asteroid that buzzed past Earth on October 31 looked like a skull at first blush, but new NASA images show another side to the space rock.
An unexpected and large asteroid is coming around for a rare flyby, zipping past Earth close enough for scientists to get a good look.
Experiments have demonstrated that it's possible to de-spin and redirect asteroids with high-powered lasers.
Rumors of an Earth-shattering asteroid impact scheduled for September are blown off course by NASA applying science to the fear-mongering.
The space agency has just announced plans to fly to an asteroid, snag a boulder, fly back toward Earth and put the rock in orbit around the moon. Because science.
You don't have to duck, but a good-sized asteroid will make a fairly close flyby of Earth at the end of the month.
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.