Science

NASA Scientist Jim Garvin, right, talks with musician will.i.am, center, and Astronaut Leland Melvin, left, next to a model of NASA’s Mars Science Laboratory Curiosity rover at Jet Propulsion Laboratory (JPL) in Pasadena, California, USA on Sunday, August 5, 2012. The Curiosity robot is equipped with a nuclear-powered lab capable of vaporizing rocks and ingesting soil, measuring habitability, and potentially paving the way for human exploration. (Pool photo Brian van der Brug/Los Angeles Times/MCT)