Since the end of the shuttle program in 2011, NASA's astronauts have had to travel to Kazakhstan and hitch a ride on Russian Soyuz capsules in order to reach the International Space Station.
At a reported cost of $80 million per seat, according to The Verge, NASA was keen to find a way to get astronauts back to lifting off from home soil, and so the agency has been working with Boeing and SpaceX to develop and build their own private spacecraft capable of taking humans into space.
On Wednesday, May 27, SpaceX is set to do just that.