NASA-SpaceX crew successfully return to Earth from International Space Station

Operating autonomously, the spacecraft began its departure with a 90-minute fly-around of the space station as the crew snapped a series of survey photographs of the orbiting outpost.

The SpaceX Crew Dragon capsule Endeavor, carrying four astronauts, approaches the International Space Station orbiting the Earth (photo credit: MIKE HOPKINS/NASA/HANDOUT VIA REUTERS)
The SpaceX Crew Dragon capsule Endeavor, carrying four astronauts, approaches the International Space Station orbiting the Earth
(photo credit: MIKE HOPKINS/NASA/HANDOUT VIA REUTERS)

Four astronauts strapped inside a SpaceX Crew Dragon capsule splashed down safely in the Gulf of Mexico off the Florida coast on Monday, capping a six-month NASA science mission aboard the International Space Station and a daylong flight home.

The Dragon vehicle, dubbed Endeavour, parachuted into the sea as planned just after 10:30 p.m. EST on Monday (0330 GMT Tuesday), following a fiery re-entry descent through Earth's atmosphere carried live by a NASA webcast.

Live thermal video imaging captured a glimpse of the capsule streaking like a meteor through the night sky over the Gulf minutes before splashdown.

Applause was heard from the flight control center as the four main parachutes inflated above the capsule as it drifted down toward the Gulf surface, slowing its speed to about 15 miles per hour (24 kph) before dropping gently into the calm sea.

"Endeavor, on behalf of SpaceX, welcome home to planet Earth," a voice from the SpaceX flight control center in suburban Los Angeles was heard telling the crew as a safe splashdown was confirmed.

ESA, NASA and JAXA astronauts arrive for the boarding of the SpaceX Falcon 9 rocket with the Crew Dragon capsule, in Cape Canaveral (credit: NASA)
ESA, NASA and JAXA astronauts arrive for the boarding of the SpaceX Falcon 9 rocket with the Crew Dragon capsule, in Cape Canaveral (credit: NASA)

"It's great to be back," one of the astronauts radioed in reply.

Operating autonomously, the spacecraft began its eight-hour return voyage earlier in the day with a 90-minute fly-around of the space station as the crew snapped a series of survey photographs of the orbiting outpost, circling the globe some 250 miles (400 km) high.

The Crew Dragon then proceeded through a series of maneuvers over the course of the day to bring it closer to Earth and line up the capsule for its final nighttime descent.

 

INTENSE RE-ENTRY HEAT

Propelled by one last ignition of its forward rocket thrusters for a "de-orbit burn," the capsule re-entered the atmosphere at about 17,000 miles per hour (27,359 kph) for a free-fall toward the ocean below, during which crew communications were lost for several minutes.


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Intense friction generated as the capsule plunges through the atmosphere sends temperatures surrounding the outside of the vehicle soaring to 3,500 degrees Fahrenheit (1,927 degrees Celsius). The re-entry friction also slows the capsule's descent before parachutes are deployed.

The astronauts' flight suits are designed to keep them cool if the cabin warms up, while a heat shield protects the capsule from incinerating on re-entry.

Recovery vessels were shown headed toward the water-proof Crew Dragon as it bobbed upright in the water. The astronauts and their capsule were expected to be hoisted out of the sea within about an hour, NASA said.

The crew, which spent 199 days in space during this mission, was made up of two NASA astronauts - mission commander Shane Kimbrough, 54, and pilot Megan McArthur, 50 - along with Japanese astronaut Akihiko Hoshide, 52, and fellow mission specialist Thomas Pesquet, 43, a French engineer from the European Space Agency.

They were lofted to orbit atop a SpaceX Falcon 9 rocket that lifted off on April 23 from the Kennedy Space Center in Florida.

It was the third crew launched into orbit under NASA's fledgling public-private partnership with SpaceX, the rocket company formed in 2002 by billionaire entrepreneur Elon Musk, who also founded electric car maker Tesla Inc.

The returning team was designated "Crew 2" because it marks the second "operational" space station team that NASA has launched aboard a SpaceX capsule since resuming human spaceflights from American soil last year, after a nine-year hiatus at the end of the U.S. space shuttle program in 2011.

The replacement team, "Crew 3," was originally slated to fly to the space station at the end of October, but that launch has been delayed by weather problems and an unspecified medical issue involving one of the four crew members.

One irregularity confronting the returning Crew 2 was a plumbing leak aboard the capsule that put the spacecraft's toilet out of order, requiring the astronauts to relieve themselves in their spacesuit undergarments if nature called during the flight home, according to NASA.