Everything you need to know ahead of the historic SpaceX launch

A close-up view of the SpaceX Falcon 9 rocket with the Crew Dragon spacecraft is seen at launch complex 39A at the Kennedy Space Center in Florida on May 25, 2020. - NASA astronauts Bob Behnken and Doug Hurley will depart for an extended stay at the International Space Station on the Demo-2 mission on May 27, 2020. While the specific duration of the mission has yet to be determined, the Crew Dragon flight will mark the first manned flight to launch from Cape Canaveral since the end of the space shuttle program in 2011. (Photo by Gregg Newton / AFP) (Photo by GREGG NEWTON/AFP via Getty Images)