SPACE STATION CREW SAYS FAREWELL TO THE CREW DRAGON DUO Aboard the International Space Station, Expedition 63 Commander Chris Cassidy of NASA and Roscosmos cosmonauts Anatoly Ivanishin and Ivan Vagner said farewell to NASA astronauts Doug Hurley and Robert Behnken Aug. 1 before they began their journey home aboard the SpaceX Crew Dragon spacecraft. Hurley and Behnken, who arrived on the station May 31, are heading home for the first parachute-assisted splashdown by U.S. astronauts in 45 years after their history-making mission as the first crew to launch on a commercial space vehicle from U.S. soil.