A SpaceX Crew Dragon capsule carrying four astronauts back to Earth has splashed down off Florida in NASA's first nighttime ocean landing in more than 50 years.

Once China establishes a lunar research station, its astronauts will stay on the moon for long periods of time as they conduct scientific studies, state media reports, citing the architect of China's lunar program.

This is Hopkins' third spacewalk and Glover's first trip outside the station.

Elon Musk's rocket company SpaceX launched four astronauts on a flight to the International Space Station on Sunday, November 15.