NASA astronauts Mike Hopkins, Shannon Walker, Victor Glover and Japan's Soichi Noguchi are on their way to the International Space Station.
Why it matters: The crewed launch marks the second time SpaceX has launched people to orbit for NASA and the mission is expected to be the first of many regular flights like this to the space station.
Four astronauts are set to launch to the International Space Station on Sunday aboard a SpaceX capsule.
Why it matters: This flight will be the company's second crewed launch for NASA and is expected to be the first of many regular flights to the station, helping end the space agency's reliance on Russian rockets for crewed missions.