Curiosity sniffs out history of Martian atmosphere
NASA's Curiosity rover is using a new experiment to better understand the history of the Martian atmosphere by analyzing xenon.
Image: Solar Electric Propulsion engine's ionizing Hall thruster
Engineers at NASA's Glenn Research Center are advancing the propulsion system that will propel the first ever mission to redirect an asteroid for astronauts to explore in the 2020s. NASA's Asteroid Redirect ...