This undated photo provided by Northrop Grumman shows The Armadillo rocket, Scorpius launching from the pad at the Northrop Grumman Lunar Lander X PRIZE contest. NASA put up $2 million in prizes for the Northrop Grumman Lunar Lander Challenge as an incentive to spur development of technology by space entrepreneurs. AP Photo logo AP Photo 1 month ago

This undated photo provided by Northrop Grumman shows The Armadillo rocket, Scorpius launching from the pad at the Northrop Grumman Lunar Lander X PRIZE contest. NASA put up $2 million in prizes for the Northrop Grumman Lunar Lander Challenge as an incentive to spur development of technology by space entrepreneurs.