Alien worlds and the Doppler effect

Half marathon notice

Visitor notice: On Sunday 4 March Cutty Sark and the museum car park will be closed for the Vitality Big Half Marathon. All other museums will be open as normal and DLR and rail links will be running. Find out about road closures

Essential information

Key stage: 
Key Stage 4, Post-16
Resource type: 
Video
Location: 
Royal Observatory
School subject: 
Astronomy, Science

In this video, Royal Observatory Greenwich astronomer Radmila demonstrates how the Doppler effect can be applied to finding planets orbiting distant stars in our galaxy called exoplanets. She carries out a short demo from which data can be collected and analysed and explains how these techniques can be applied to light and the hunt for exoplanets.

Accompanying Resources