Watch live: NASA astronauts head home in SpaceX capsule

By Paul Brinkmann & Glenn Singer
SpaceX's Crew Dragon capsule, Endeavor, is shown May 31 as it docks with the International Space Station. It is scheduled to depart Sunday. Photo courtesy of NASA | <a href="/News_Photos/lp/f7f91647b5a43b622b2df8eedb421e97/" target="_blank">License Photo</a>
SpaceX's Crew Dragon capsule, Endeavor, is shown May 31 as it docks with the International Space Station. It is scheduled to depart Sunday. Photo courtesy of NASA | License Photo

ORLANDO, Fla., Aug. 1 (UPI) -- Two NASA astronauts left the International Space Station on Saturday evening in SpaceX's groundbreaking Crew Dragon capsule, headed for an at-sea landing Sunday afternoon off Pensacola, Fla., in the Gulf of Mexico.

The astronauts, flying in the capsule they named Endeavour, began to undock from the International Space Station at 7:30 p.m. EDT, a few minutes ahead of schedule. They are to splash down at 2:48 p.m. EDT Sunday.


During the undocking, a command from Earth released 12 hooks on the International Space Station that had held the SpaceX capsule in place.

Then, two very quick engine burns fully separated the capsule from the space station at 7:35 p.m. EDT, followed by a longer engine burn that further distanced Endeavor from the space station.


The original landing site had been in the Atlantic Ocean near Kennedy Space Center, but splashdown would have occurred around the time Tropical Storm Isaias was due to arrive along central Florida's east coast.

"We're going to watch the weather very carefully," said Steve Stich, manager of the agency's Commercial Crew Program, said Friday before the decision to land Sunday had been made.

"This is a test flight, and we're going to take our time to come home. We have plenty of opportunities here in August, and we're in no hurry," Stich said.

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The astronauts will travel for more than 19 hours in the capsule, but they could spend up to three or four days above Earth if needed, Stich said.

For example, if the track of the storm shifted unexpectedly and made it impossible to land, the astronauts could remain in orbit until the storm passes and seas calm.

Astronauts Doug Hurley and Bob Behnken are returning after two months in space. They made history when they flew the capsule to the space station May 31 -- the first crewed launch from U.S. soil in nine years.

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The two said during a press conference from space Friday that they enjoyed their time on the space station, especially Behnken's four spacewalks with fellow astronaut Chris Cassidy, who will remain there. Hurley helped the spacewalkers from inside.


The astronauts acknowledged weather is their primary concern about the return, but said they weren't going to worry about potential delays.

"We don't control the weather, and we know we can stay up here longer -- there's more chow and I know the space station programs have more work that we can do," Behnken said.

Behnken said he will have a few tips for his wife, Meghan McArthur, who is scheduled to sit in his seat on the Dragon during a flight to the International Space Station later this year, notably "where best to pack all your personal items so that you can get to them conveniently."

He tweeted Saturday morning, "All my bags are packed, I'm ready to go."

The SpaceX mission is considered a demonstration flight -- a final step before the capsule is fully certified for regular ferry service to the space station.

The return to Earth will mark the first splashdown of a U.S. space capsule carrying astronauts since the Apollo-Soyuz Test Project that was launched from Kennedy Space Center in 1975. That was the final flight of the Apollo spacecraft.


The astronauts anticipate they might become seasick and nauseated after they land in the water, probably the Gulf of Mexico, Hurley said.

"There are bags, if you need them, and we'll have those handy. We'll probably have some towels handy, as well. And, you know ... it certainly wouldn't be the first time that that's happened in a space vehicle, but it will be the first time in this particular vehicle if we do," Hurley said.

Two SpaceX recovery ships in the Gulf will head to the capsule once it lands. The first vessel's crew will pull the capsule from the water and help the astronauts out, NASA said.

A second ship will recover two sets of parachutes that are to deploy and slow the capsule's descent once it re-enters the Earth's atmosphere.

If the astronauts experience an emergency, a helicopter aboard the first ship can evacuate them to a hospital.

Crew Dragon will travel about 17,500 mph as it re-enters the atmosphere. The re-entry will create a communications blackout, expected to last about six minutes.

Behnken completed four spacewalks while aboard the space station. The mission had been planned to last just five days, but it was extended so Behnken could help finish a years-long project to upgrade the power system.


No issues with the capsule have been reported -- a situation described by a SpaceX commentator as "pretty boring for the astronauts, but that's what we wanted."

SpaceX secured a contract to provide ferry service to the space station for a fixed cost in 2014, and developed the rocket and capsule with NASA's cooperation.

If the flight home is successful, NASA plans to launch another SpaceX capsule to the space station in September, officials said.

Crew members for that mission are to be NASA astronauts Mike Hopkins, Victor Glover and Shannon Walker, along with Soichi Noguchi from the Japan Aerospace Exploration Agency.

Over the past decade, NASA astronauts only used Russian Soyuz rockets and capsules to reach the space station, at a cost of more than $70 million per seat.

Behnken, 49, and Hurley, 53, have been astronauts since their selection in 2000. They worked closely with SpaceX to develop the new spacecraft systems.

Astronauts make round trip to space station from U.S. soil

NASA astronaut Douglas Hurley (C) waves to onlookers as he boards a plane at Naval Air Station Pensacola to return him and NASA astronaut Robert Behnken home to Houston a few hours after the duo landed in their SpaceX Crew Dragon Endeavour spacecraft off the coast of Pensacola, Fla,, on August 2, 2020. Photo by Bill Ingalls/NASA | License Photo

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