
The Hertzsprung-Russel Diagram
The Hertzsprung-Russell diagram shows how stars are related by temperature and brightness, revealing patterns in their lifecycles. Explore real stars within 250 light years and see how their properties compare.
These resources explore advanced ideas in astronomy, astrophysics and astrobiology through observation, inquiry and critical thinking. Students investigate topics ranging from stellar evolution and cosmology to cultural astronomy, navigation and humanity’s place in the Universe.

The Hertzsprung-Russell diagram shows how stars are related by temperature and brightness, revealing patterns in their lifecycles. Explore real stars within 250 light years and see how their properties compare.

Accretion disks are common in space; they can form around planets, stars, and black holes. These disks play a crucial role in the formation of planets around young stars. The

If you’ve looked up at stars, you may have noticed their colour varies. Some stars appear to be slightly orange, others blue, and some appear to be white. The colour
Water Rockets – Velocity If you’ve been stepping through the previous pages, you know we have worked out a force due to thrust from our water rocket here. To recap,
Water rocket forces Part 2 This page has the title of Water Rockets Forces Part 2, which implies there’s a part one. There is, it is called Water Rocket Forces.
Water rocket forces Water rockets offer a great way to understand forces. Newton did much work thinking about forces and how they influence objects. Forces A force has magnitude and
Water Rockets – Calculating Time To Expel water On this page we are going to work through the concepts and method of figuring out how long the water takes to
Working out work with calculus You’ve landed on this page because you’ve either accidentally clicked on the button on the Water Rocket Physics – Work page, or you’ve accidentally ended
Water rocket physics – work This section is all about work. Water rockets work because the pressure change in the water bottle (the rocket) does some work on the water.

Calculating Water Rockets Calculating Water Rockets (no calculus) Water Rockets are a great way of getting outside and doing some experiments. When we observe how a water rocket performs, we






This activity is part of our live SpacewardBound sessions delivered directly in schools. We run it as a full interactive experience using our mobile planetarium and hands-on activities.
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