简体中文
A new era in space travel is set to begin this weekend, with the scheduled lift-off of SpaceX's first operational crewed flight to the International Space Station (ISS).
NASA
is using Elon Musk's
aerospace company as a "taxi service" to fly its crew to and from the ISS
, a large spacecraft in orbit around Earth.
It was meant to launch on 31 October, but was delayed due to an "unexpected" problem with the rocket.
This will be SpaceX's second crewed flight for NASA - following the successful Demo-2 flight that launched in May.
Image:A SpaceX Falcon 9 rocket and Crew Dragon spacecraft carrying NASA astronauts lifts off in May 2020. File pic
Earlier this week, the US space agency confirmed it had approved
SpaceX's
Crew Dragon capsule and Falcon 9 rocket to carry **astronauts
.**
It made SpaceX the first commercial human spaceflight system.
A crew of one Japanese and three US astronauts is scheduled for lift-off in Florida at 7.49pm on Saturday (12.49am on Sunday UK time).
NASA's Mike Hopkins, Victor Glover, and Shannon Walker, as well as Japan's Soichi Noguchi will make the journey to the space station in the Crew Dragon capsule.
The rocket will separate into a first stage and a second stage soon after lift-off.
The first stage will go back to a SpaceX landing ship off Florida, while the second part will continue the journey with the capsule.
Then in orbit, the capsule will separate from the second stage and head to the ISS.
Mr Musk said in a statement: "This is a great honour that inspires confidence in our endeavour to return to the Moon, travel to Mars, and ultimately help humanity become multi-planetary."
Jim Bridenstine, NASA administrator, said: "I'm extremely proud to say we are returning regular human spaceflight launches to American soil on an American rocket and spacecraft."
Image:Elon Musk, founder and CEO of SpaceX in a news conference at Kennedy Space Center in May
The project will save the agency a considerable amount of money as it will cost about $55m (£40m) per astronaut, rather than the $90m (£67m) it was being charged by Russia's space agency Roscosmos.
The astronauts will spend six months on the orbiting space laboratory, conducting scientific experiments and performing various other tasks.
The crew is set to blast off from the Kennedy Space Centre in Florida and then dock with the space station at 4.20am on Sunday (9.20am UK time).
The astronauts will join three other ISS - NASA's Kate Rubins and Russia's Sergey Ryzhikov and Sergey Kud-Sverchkov - to become part of the Expedition 64 crew.
Image:The International Space Station (ISS) seen from NASA space shuttle Endeavour
Image:(L-R) Bob Behnken and Doug Hurley
Mr Musk's firm made history when it became the first private company to send humans into orbit in May.
US astronauts
Robert Behnken and Douglas Hurley
travelled to the space station and back as part of a mission to demonstrate SpaceX's capability to safely perform crewed missions.
Meanwhile, NASA's other taxi service for hire, Boeing, is not expected to fly its first crew until next summer.
