Make Your Own Impact Crater

Impact craters are made when a space rock (called a meteorite or asteroid) hits a rocky planet or moon. The impact makes a round hole in the surface, called a crater.

Photo of the Barringer Meteor Crater in Arizona

What are the Risks from Asteroids?

An illustration of an asteroid heading towards the Earth

What are Asteroids and Comets?

The image shows an asteroid in space on the left, and a comet viewed from Earth on the right.