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.

Meteor Showers

Perseid Meteor Shower
Credit: David Kingham

Meteors, sometimes called shooting stars, are not stars at all, but small rocks burning up as they fall through Earth's atmosphere. Their super fast speed through the air causes them to burn up as they fall.