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Alan Fitzsimmons: How do we know what asteroids are made of?
- Video Online only
- Title Alan Fitzsimmons: How do we know what asteroids are made of?
- Released: 30/06/2020
- Length 00:01:07
- Language English
- Footage Type Interview
- Copyright ESA
- Description
How do we know what asteroids are made of, when we've only recently been able to visit them? Alan Fitzsimmons explains how we can also use the space rocks that come to us.
Asteroids can tell us about the origins of the Solar System and maybe even life itself, but they also pose a risk to Earth as many graze past our planet on a regular basis. Find out more about what ESA is doing to protect us through its Planetary Defence Office, part of the Space Safety programme.