SpaceGoogle-sponsored private moon race delayed for the fourth time Competitors in the Google Lunar X Prize now have until 31 March 2018 to land a spacecraft on the moon 51¶¯Âþ
SpaceNuclear reactors on rockets may fuel future crewed trips to Mars NASA’s push to develop a rocket engine powered by a nuclear reactor could create a faster, lighter spaceship and cut the trip to Mars down to four months 51¶¯Âþ