How big is the largest crater on Callisto?

We find out what the biggest impact is on this Galilean moon

What happens to planets when galaxies collide?

A full on smashup or a near miss? We find out what happens to planets when their galaxies collide

How do space rocks make such large dents in celestial bodies?

The oldest rock formation located in Canada could have only been formed from a drastic event such as a meteor bombardment

Space debris about half the size of a pinhead slammed into part of the Lunar Reconnaissance Orbiter and produced a zigzag Moon image

The lunar surface is being churned up more than 100 times faster than scientists previously thought

Using a telescope and camera, astronomer John McKeon filmed the incredible spectacle

NASA’s Patrick Troutman speculates on the future of our planet

This small Saturnian moon is one of the most heavily cratered bodies in the Solar System, including one massive impact…

Shoemaker-Levy 9’s co-discoverer David Levy relives the comet’s crash with Jupiter twenty years on

Could strike Earth with the energy of a 2,500 megaton bomb