There are probably four rocky planets in the habitable zones of nearby Sun-like stars, says NASA
Data from NASA's Kepler Space Telescope constrains the number of nearby Earth-like planets. The task now is to find them. ...read more
Data from NASA's Kepler Space Telescope constrains the number of nearby Earth-like planets. The task now is to find them. ...read more
With a variety of backgrounds and talents, these women have helped push the boundaries of spaceflight. ...read more