Doug Hurley

Two NASA astronauts have arrived at the International Space Station, 19 hours after launching from Kennedy Space Center in Florida on Saturday. NASA astronauts Doug Hurley and Bob Behnken made the trip on a private space vehicle designed, built and launched by SpaceX.

SpaceX's Crew Dragon capsule docked with the station at 10:17 a.m. ET while flying over the border of northern China and Mongolia.

When NASA astronauts launch from the Kennedy Space Center, it will be the first time humans have blasted off from the U.S. since the end of the space shuttle program in 2011.

The pilot of that final shuttle mission was Doug Hurley, and he's aboard again Wednesday, ready to make history with the launch of SpaceX's Crew Dragon capsule.