The understaffed International Space Station will soon have four new crew members to bring the team size back up to seven, thanks to the successful launch of a Falcon 9 rocket on Thursday.

A relief crew of four astronauts is headed to the International Space Station after a medical evacuation forced the previous crew back to Earth.

The two-stage Falcon 9 rocket, topped with an autonomously operated Crew Dragon capsule dubbed "Freedom", was launched from the Cape Canaveral Space Force Station, along Florida's Atlantic Coast, at a...