California-based private spaceflight company SpaceX has signed contract with NASA to transport astronauts to the International Space Station.
What the actual scenario is?
The flights will take place on Boeing’s CST-100 Starliner and SpaceX’s Crew Dragon spacecraft. However the missions will not take place until NASA verifies the safety of the equipment and crew of SpaceX. The cost of hiring low-orbit manned commercial operations like Boeing and SpaceX is considerably less than what NASA currently pays to the Russian Federal Space Agency for use of their Soyuz vehicle.
SpaceX was founded by Tesla owner and PayPal co-founder Elon Musk. It has already flown unmanned supply missions to the ISS since it was contracted in 2006, using its Falcon launch vehicle.