An unmanned capsule from Elon Musk's SpaceX splashed into the Atlantic Ocean on Friday, successfully completing a mission crucial to NASA's long-delayed quest to resume human space flight from U.S. soil later this year.

After a six-day mission to the International Space Station, Crew Dragon detached and sped back to Earth, reaching hypersonic speeds before an 8:45 a.m. splash-down about 200 miles (320 km) off the Florida coast.

A SpaceX rocket launched the 16-foot-tall (4.9-meter) capsule from the Kennedy Space Center in Florida on March 2.