Do Astronauts Need Sunscreen? (video)

Radiation on Mars
ACS
Space is full of potentially dangerous radiation. Here on Earth, our atmosphere and magnetic field protect us from the worst of it.
Astronauts on a deep-space mission would need other forms of protection. In collaboration with National Chemistry Week, this Reactions video is all about chemistry in space.
Reactions is a video series produced by the American Chemical Society and PBS Digital Studios. Subscribe to Reactions at http://bit.ly/ACSReactions, and follow us on Twitter @ACSreactions.