Astronaut Scott Kelly speaks to the media after returning from a one year mission in space aboard the International Space Station at the Johnson...
{"Image ImageDescription": "HOUSTON, TX  - MARCH 4: NASA Astronaut Scott Kelly speaks to the media after returning from a one year mission in space aboard the International Space Station, at the Johnson Space Center March 4, 2016 in Houston, Texas. Kelly's his record-breaking yearlong mission was intended to provide critical data to understand how to keep astronauts healthy during long space voyages.  (Photo by Eric Kayne/Getty Images)", "Image Copyright": "2016 Getty Images"}