Media playback is unsupported on your device

How to put a human on Mars: The radiation threat

22 July 2013 Last updated at 15:48 BST

An Imperial College team discuss the radiation threat a human crew would face en route to Mars and on the planet itself.

They talk about the threat from the Sun and from deep space and what measures the crew could use to reduce the danger.

Video journalist: Neil Bowdler. Animation: George Spencer. Music: Spiro.

Most watched

Copyright © 2015 BBC. The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.