SpaceX launch - live: Nasa to attempt mission today as rocket liftoff threatened by weather again

SpaceX has sent Nasa astronauts into space in a historic mission. The Falcon 9 rocket carried the astronauts into orbit in SpaceX's Crew Dragon capsule. Minutes after launch, the rocket detached and landed safely on a drone ship while the capsule continued to carry the astronauts on to the International Space Station. The successful launch is the first time that humans have been shot into space from US soil since the Space Shuttle programme ended in 2011. And it is the first time that humans have been sent into space by a private company, a feat only previous achieved by the space agencies of the US, Russia and China.