The space rock is heading in our direction at some 18,700 miles per hour, according to the space agency's data.

NASA is tracking a truck-sized asteroid which is set to hurtle by Earth today at many times the velocity of a speeding bullet ...

They sometimes get pushed out of the belt and can end up all over the place — like this one.How do scientists track potentially dangerous asteroids?A telescope in Chile discovered the asteroid ...

Scientists believe they're the leftovers from the solar system's formation 4.6 billion years ago.There are so many asteroids orbiting between Mars and Jupiter — millions of them — that this region is ...