The Inspiration4 crew will fly aboard SpaceX’s futuristic Dragon capsule, which is fully autonomous.
The launch will complete a summer of spaceflight firsts, following hot on the heels of Richard Branson’s Virgin Galactic and Jeff Bezos’s Blue Origin launching on suborbital flights in July.
SpaceX, however, has shifted into fifth gear for Inspiration4 and the mission will soar considerably higher than Virgin Galactic or Blue Origin – higher even than the International Space Station (ISS).
The Inspiration4 crew will spend three days in orbit, circling the planet at breakneck speeds of five miles per second.
READ MORE: UK satellite firm snubs EU’s Galileo with ‘strength of performance’