Skip to content
Skip to main content

About this free course

Download this course

Share this free course

In the night sky: Orion
In the night sky: Orion

Start this free course now. Just create an account and sign in. Enrol and complete the course for a free statement of participation or digital badge if available.


An object in orbit around a larger one, e.g. a ‘moon’, or an artificial space probe orbiting a planet.

» Orion Glossary