Though they shine for many thousands, and even millions of years, stars do not last for ever. They ignite, burn, and then run out of fuel and go out. 

Can you match the images of each stage of a star's existence to the correct description?

The word nebula is used to talk about any dusty, fuzzy objects in space but they can be very different things! Can you classify each image into its proper category?

During their lives, stars undergo massive changes. What happens to them depends on how much mass they contain.

Can you put the stages that a low mass star and a high mass star will go through in the correct order on the diagram?

What do you know about classifying galaxies? Challenge yourself with this quiz.

A solar system consists of a star and the objects that orbit it. A galaxy contains millions of stars and solar systems. But how much do you know about our own Solar System? Take our quiz to find out!