England Key Stage 5

What is a star?

We can see thousands of stars in the night sky - small points of light in the vastness of space. But what are stars? How do they make light? Why are they different colours? Watch this video to find out some more information about stars!

A photo of the Sun with the text What is a star? on a black background

What is a nebula?

Images of nebulae in space with a question mark in the centre

Investigate: Measure the Size of a Galaxy

Have you ever wondered how big a galaxy is? They contain millions to billions of stars but what does that really mean for size?

Reading about sizes in a book is one thing, but what if you could make an observation of a galaxy and then measure its size?

Picture of a galaxy with a ruler next to it and question marks