Details on international crew aboard SpaceX rocket headed to ISS

A multi-national crew of four astronauts launched Thursday aboard a SpaceX Dragon spacecraft, traveling 260 miles above Earth to reach the International Space Station. This team is embarking on a six-month mission to replace the 12-astronaut crew that has been stationed at the orbiting lab since February. Among the crew members is an astronaut whose wife is currently pregnant, describing the mission as a sacrifice while he completes his duties in space.