Summary: Cosmic rays are inescapable in space. They can rip right through an astronaut, damaging DNA and possibly causing cancer and memory loss over the long-term. But recent research shows that antioxidants, found in certain berries and fruit, may decrease the effects of this type of radiation. For more, watch "Can We Make It To Mars?" on pbs.org/nova. Original footage produced for NOVA by Sarah Holt. Video (all) © WGBH Educational Foundation
