SpaceX launches 4 astronauts for NASA after private flight

A week after the new crew arrives, the three Americans and German they're replacing will return to Earth in their own SpaceX capsule.

SpaceX launched four astronauts to the International Space Station for NASA on Wednesday, less than two days after completing a flight chartered by millionaires.

It's the first NASA crew comprised equally of men and women, including the first Black woman making a long-term spaceflight, Jessica Watkins.

“This is one of the most diversified, I think, crews that we've had in a really, really long time," said NASA's space operations mission chief Kathy Lueders.

The astronauts were due to arrive at the space station Wednesday night, 16 hours after a predawn liftoff from Kennedy Space Center that thrilled spectators.

“Anyone who saw it realized what a beautiful launch it was,” Lueders told reporters. After an express flight comparable to traveling from New York to Singapore, the crew will move in for a five-month stay.

SpaceX has now launched five crews for NASA and two private trips in just under two years. Elon Musk's company is having an especially busy few weeks: It just finished taking three businessmen to and from the space station as NASA's first private guests.

A week after the new crew arrives, the three Americans and German they're replacing will return to Earth in their own SpaceX capsule. Three Russians also live at the space station.