Impact craters are formed when an object from space such as a meteoroid, asteroid or comet strikes Earth at a very high ...

Meteors can light up the sky in the form of shooting stars, but they often burn up in the atmosphere. Some are able to make it through, however.

The largest piece of Mars ever found on Earth was sold for just over $5 million at an auction of rare geological and archaeological objects in New York, while a juvenile dinosaur skeleton went for ...