Tech billionaire Isaacman returns to Earth after first private spacewalk

A billionaire spacewalker returned to Earth with his crew on Sunday, ending a five-day trip that lifted them higher than anyone has travelled since NASA's moonwalkers.

SpaceX's capsule splashed down in the Gulf of Mexico near Florida's Dry Tortugas in the predawn darkness, carrying tech entrepreneur Jared Isaacman, two SpaceX engineers and a former Air Force Thunderbird pilot.

They pulled off the first private spacewalk while orbiting nearly 460 miles (740 kilometres) above Earth, higher than the International Space Station and Hubble Space Telescope. Their spacecraft hit a peak altitude of 875 miles (1,408 kilometres) following Tuesday's liftoff.

Isaacman became only the 264th person to perform a spacewalk since the former Soviet Union scored the first in 1965, and SpaceX's Sarah Gillis the 265th. Until now, all spacewalks were done by professional astronauts.

During Thursday's commercial spacewalk, the Dragon capsule's hatch was open barely a half-hour. Isaacman emerged only up t