Could a giant planet between Mars and Jupiter have doomed Earth? A new study suggests that small changes would have been ...

Countless asteroids in our solar system, some close, some far — but did you know that some of these space rocks have names?

There are so many asteroids orbiting between Mars and Jupiter — millions of them — that this region is known as the main asteroid belt. They sometimes get pushed out of the belt and can end up ...

There are so many asteroids orbiting between Mars and Jupiter — millions of them — that this region is known as the main asteroid belt. They sometimes get pushed out of the belt and can end up ...

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 ...