MOUNTAIN VIEW, CA - DECEMBER 04: Former NASA Astronauts Scott Kelly (L) and Mark Kelly attend the 2017 Breakthrough Prize at NASA Ames Research Center on December 4, 2016 in Mountain View, California. (Photo by C Flanigan/FilmMagic)
MOUNTAIN VIEW, CA - DECEMBER 04: Former NASA Astronauts Scott Kelly (L) and Mark Kelly attend the 2017 Breakthrough Prize at NASA Ames Research Center on December 4, 2016 in Mountain View, California. (Photo by C Flanigan/FilmMagic)