SpaceX's Crew Dragon is scheduled to jettison the first all-civilian space flight to enter the Earth's orbit on September 15.
After blastoff at Cape Canaveral, Florida, Inspiration 4's four-man crew will circle the globe once every 90 minutes at more than 17,000 miles per hour, or roughly 22 times the speed of sound, for three days before splashdown in the Atlantic on Saturday.
Richard Branson and Jeff Bezos have backed space missions without professional astronauts onboard, however, both of these flights were 'suborbital' and lasted just a few minutes.