Since NASA launched the Kepler mission in February 2012, 461 potential planets have been identified. Scientists say they have identified the most "earth-like" world found yet.
Space shuttle Endeavour, sitting on top of NASA's Shuttle Carrier Aircraft or SCA, traveled to Los Angeles on September 21, 2012. The Space Shuttle Endeavour will be placed on public display at the California Science Center. This is the final ferry flight scheduled in the Space Shuttle Program era.