'It's surreal': First Black astronaut on long-term stay at ISS

"It was awesome," Glover, who is known as Ike, said during a press conference. "When the engine cut off and we were in orbit, I mean, it's surreal... When I first looked out the window at the Earth, it's hard to describe... it was an amazing once-in-a-lifetime feeling,"

On Tuesday, four astronauts riding a newly-designed spacecraft from Elon Musk's rocket company SpaceX greeted their new crewmates aboard the International Space Station on Tuesday after successfully docking in a landmark achievement for private space travel.

In NASA's first full-fledged mission ferrying a crew into orbit on a privately-owned spacecraft, the SpaceX Crew Dragon capsule dubbed Resilience opened its hatch door shortly after 1 a.m. EST (0600 GMT), two hours after docking and 27 hours after launching atop a Falcon 9 rocket from Cape Canaveral, Fla.

Glover was the pilot of the Crew Dragon spacecraft and this is his first spaceflight.