Critical Thinking

Why Do Shadows Change Over Time?


Have you noticed that your shadow changes over time? The cartoon on this page shows why shadows change during the day.


Screenshot of the shadows animation.

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.

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.

Order the Orbit

Short Intro Text: 

These orbit maps of the inner Solar System are in the wrong places on the calendar! Can you rearrange them so each image is on the correct date?