NASA astronaut Mark Kelly speaks on the phone to his twin brother, Expedition 25 Flight Engineer Scott Kelly, after his arrival to the International Space Station on Sunday, Oct. 10, 2010 in Korolev, Russia. Photo Credit: (NASA/Carla Cioffi)
NASA astronaut Mark Kelly speaks on the phone to his twin brother, Expedition 25 Flight Engineer Scott Kelly, after his arrival to the International Space Station on Sunday, Oct. 10, 2010 in Korolev, Russia. Photo Credit: (NASA/Carla Cioffi)