Caption:
Houston Texas at the Johnson Space Center Expedition 45/46 Commander, Astronaut Scott Kelly along with his brother, former Astronaut Mark Kelly speak to news media on January 19, 2015 about Scott Kelly's 1-year mission aboard the International Space Station. Scott Joseph Kelly (born February 21, 1964) is an American astronaut, engineer and a retired U.S. Navy Captain. A veteran of three previous missions, Kelly was selected along with Mikhail Korniyenko in November 2012 for a special year-long mission to the International Space Station. Kelly commanded the International Space Station (ISS) on Expedition 26. Kelly's identical twin brother, Mark Kelly, is a former astronaut. The Kelly brothers are the only siblings to have traveled in space. Mark Edward Kelly (born February 21, 1964) is a retired American astronaut, engineer and U.S. Navy Captain. He is the husband of former Congresswoman Gabrielle Giffords, an author, a political activist, and an aerospace executive and consultant.