Ben Cooper for SpaceX SpaceX, founded by Elon Musk more than 18 years ago, is about to rocket launch its first humans into orbit. If all goes according to plan, astronauts Bob Behnken and Doug Hurley will lift off at 4:33 p.m. ET on Wednesday as part of a test flight of the new Crew Dragon spaceship. However, officials from SpaceX and NASA said on Monday that stormy weather may delay the mission. If the launch of SpaceX's new Crew Dragon spaceship is scrubbed or delayed, the company can try again at 3:22 p.m.