SpaceX Demo-2 mission explained by NASA crew

NASA astronauts Bob Behnken and Doug Hurley break down their SpaceX Crew Dragon Demo-2 mission to the International Space Station. -- Astronauts enter a routine quarantine for historic SpaceX Crew Dragon launch: https://www.space.com/spacex-crew-dragon-astronauts-demo-2-quarantine.html Credit: Space.com / Footage/animations courtesy: SpaceX/NASA/Kennedy Space Center / produced & edited by Steve Spaleta (http://www.twitter.com/stevespaleta)