Historic private astronaut mission prepares for splashdown [Video]

The SpaceX Polaris Dawn mission, which made history when its crew conducted the first ever spacewalk by non-government astronauts, is returning to Earth on Sunday.

Splashdown is scheduled to take place at approximately 3:36 am Eastern Time (0736 GMT) off the coast of Dry Tortugas, Florida.

A live webcast will be carried by SpaceX starting around an hour beforehand.

The four-member team led by fintech billionaire Jared Isaacman launched Tuesday from the Kennedy Space Center, quickly journeying deeper into the cosmos than any humans in the past half century as they ventured into the dangerous Van Allen radiation belt.

They hit a peak altitude of 870 miles (1,400 kilometers) — more than three times higher than the International Space Station, and the furthest humans had ever traveled from Earth since the Apollo missions to the Moon.

Then on Thursday, with their Dragon spacecraft’s orbit brought down to 434 miles, Isaacman …