The crew of two Americans, a Frenchman, and one Japanese astronaut conducted hundreds of experiments and helped upgrade the station's solar panels.
SpaceX began providing astronauts a taxi service to the ISS in 2020
A SpaceX capsule carrying four astronauts back to Earth after a busy six months on the International Space Station landed Monday off the coast of Florida, a NASA live broadcast showed.
Slowed by the Earth's atmosphere, as well as four huge parachutes, the Dragon capsule was able to withstand the dizzying descent thanks to its heat shield.
It landed in the Gulf of Mexico at 10:33 pm US Eastern Time (09:03am IST Tuesday), marking the end of the "Crew-2" mission.
A boat will retrieve the capsule, and the astronauts on board will be brought back to land via helicopter.
Since arriving on April 24, the crew of two Americans, a Frenchman and one Japanese astronaut conducted hundreds of experiments and helped upgrade the station's solar panels.
They boarded their Dragon, dubbed "Endeavour", and undocked from the ISS at 2:05 pm (12:35am IST), NASA announced.
Endeavour then looped around the ISS for around an hour-and-a-half to take photographs, the first such mission since a Russian Soyuz spaceship performed a similar maneuver in 2018.
The Dragon, which flew mostly autonomously, has a small circular window at the top of its forward hatch through which the astronauts can point their cameras.
"Proud to have represented France once again in space! Next stop, the Moon?" tweeted Thomas Pesquet from the European Space Agency (ESA).
Their activities have included documenting the planet's surface to record human-caused changes and natural events, growing Hatch chile peppers and studying worms to better understand human health changes in space.
Crew-2's departure was delayed a day by high winds.
Bad weather and what NASA called a "minor medical issue" have also pushed back the launch of the next set of astronauts, on the Crew-3 mission, which is now set to launch Wednesday.
Until then, the ISS will be inhabited by only three astronauts — two Russians and one American.
SpaceX began providing astronauts a taxi service to the ISS in 2020, ending nine years of US reliance on Russian rockets for the journey following the end of the Space Shuttle program.
Broken toilet
The crew also faced a final challenge on their journey home — they had to wear diapers after a problem was detected with the capsule's waste management system, forcing it to remain offline.
They had no access to a toilet from the time the hatch closed at 12:40 pm (11:40am IST on Tuesday) until after splashdown — around 10 hours.
"Of course that's sub-optimal, but we're prepared to manage," NASA astronaut Megan McArthur said at a press conference ahead of the departure.
"Space flight is full of lots of little challenges, this is just one more that we'll encounter and take care of in our mission."
A SpaceX all-tourist crew encountered a similar waste-related problem during a September flight, which triggered an alarm system.
NASA later said a tube had come unglued, sending urine to the capsule's fan system instead of a storage tank.
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