And Wiens has done a lot of improvising in his role as director of ChemCam, one of 11 scientific instruments on the rover Curiosity, which landed on Mars last summer. “Red Rover” is the story ...

Roger Wiens and his older brother, Doug, spent part of the summer of 1971 building a telescope from scratch to observe the close approach of Mars. The two brothers from the small southwest ...

On the surface, in Mars' Gale crater, the Curiosity Mars rover's Radiation Assessment Detector (RAD) usually records an average daily radiation dose of about 700 micrograys. During the solar storm ...

Because Mars lacks Earth's thick atmosphere and magnetic field, astronauts exploring the planet would be exposed to dangerous levels of radiation. Dimitra Atri, Investigator, Center for ...

NASA is looking at ways of changing the DNA of its Mars astronauts to protect them from radiation. The US space agency plans its first manned mission in the 2030s but there’s a risk of cancer ...