Mars Odyssey Shows Intense, But Managable Radiation Risk for Astronauts

Preliminary measurements of space radiation at Mars suggest that astronauts who travel there could face exposure to doses that over the course of a three-year mission would approach the lifetime safety limits set by NASA. While the radiation appears to be manageable, an official said a network of radiation sensors in the inner solar system will be needed to warn Mars astronauts of impending space storms so that they can take cover.