The Latest: 2 spacemen back home after year aloft
Scientists are hoping for more one-year subjects as NASA looks ahead to Mars trips. Astronaut Scott Kelly is streaking back to Earth to end an unprecedented yearlong mission in space for NASA. Scientists are hoping for more one-year subjects as NASA looks ahead to Mars trips. Scientists are hoping for more one-year subjects as NASA looks ahead to Mars trips. NASA astronaut Scott Kelly is closing the door on a space mission that has spanned a U.S.-record 340 days. By the time their Russian capsule lands in Kazakhstan on Wednesday, the pair will have circled the world 5,440 times and experienced 10,880 orbital sunrises and sunsets. Scientists are hoping for more one-year subjects as NASA looks ahead to Mars trips.