New mission wo n't be ready until 2016 at earliest . It could go to moon or Mars . Separate crew members needed to travel farther . NASA has not flown astronauts beyond low-Earth orbit since the Apollo program , in the 1970s . It needed to fill gap left by end to shuttle ##s .
New mission wo n't be ready until 2016 at earliest . It could go to moon or Mars . Separate crew members needed to travel farther . It needed to fill gap left by end to shuttle ##s .