Bugged game. If you leave Kepler, skip some missions, and make it back to Earth then it never lets you land. I did go back to kepler and completed the skipped missions and am now orbiting the Earth at 1,414,513,040 mph with nothing to do. Hmm - something ain't right here boys.
 "Stickmen Castle Defense"){kind=icon}
 "Destination Kepler"){kind=icon}
 "The Last Stand: Union City"){kind=icon}
 "1066"){kind=icon}