England Post-16

Distances in Space

Distances to objects in space are very, very large.

a starry background with a tape measure and the word year

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

Host A Space Debate

Should humans colonise Mars? Is there life in the Universe? Science continually seeks to answer big questions - but it takes a lot of research and communication to come to a consensus. Why not host a debate and try it yourself?

Three people standing on a debate stage in front of a large crowd.

How is the Universe Expanding?

Illustration representing the mesh used to describe gravity.

Kepler's Laws: Find the Mass of the Sun

Many years ago, a mathematician named Johannes Kepler created a set of rules explaining planets' movement in our Solar System.

The picture shows a cartoon portrait of Johannes Kepler in front of an artist's impression of the Solar System.

Create An Expanding Universe

You have likely heard about the Universe expanding. Or that redshift can tell us about the movements of galaxies. Both are difficult ideas to imagine and understand.

Cartoon of a person blowing up a balloon. The balloon is covered with galaxies.

Pair the Stages of a Star

Short Intro Text: 

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?


Order the Stages of a Star

Short Intro Text: 

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?