After completing a nearly eight-month tour of duty aboard the International Space Station (ISS), the four astronauts of NASA's SpaceX Crew-12 mission are officially heading home. The Dragon spacecraft Freedom autonomously undocked from the space station's Harmony module at 8:05 a.m. EDT on Wednesday, October 7. The departure initiates a 27.5-hour orbital descent trajectory targeting a parachute-assisted splashdown off the coast of California at approximately 11:34 a.m. EDT (8:34 a.m. PDT) on Thursday, October 8.
The return caps a 237-day mission in low-Earth orbit, transferring station operations to the newly arrived Crew-13 rotation. The mission was covered by NASA's Station Blog and Space.com.
The Returning Astronauts
The international Crew-12 quartet brings home a blend of veteran spacefarers and first-time flyers representing NASA, the European Space Agency (ESA), and Roscosmos. Led by veteran NASA astronaut and marine biologist Dr. Jessica Meir, the mission logged critical milestones in human spaceflight. During their stint aboard the orbital outpost, ESA astronaut Sophie Adenot made history as the first French woman to perform a spacewalk. Adenot completed three extravehicular activities (EVAs), including an all-female spacewalk alongside Meir.
Commander Meir completed four spacewalks during the mission, bringing her career total to seven. Pilot Jack Hathaway logged his first spaceflight, accumulating 237 total days in space, while Roscosmos cosmonaut Andrey Fedyaev completed his second long-duration spaceflight. The crew's diverse expertise, spanning marine biology, military aviation, engineering, and cosmonaut operations, supported the station's broad research portfolio throughout their stay.
This return follows our coverage of the Crew-13 launch, which delivered the replacement rotation to the station on October 1, completing the crew handover that now allows Crew-12 to return.
237 Days of Science and Cargo Return
During their nearly eight months in orbit, the Crew-12 team oversaw hundreds of scientific experiments spanning human physiology, materials science, and bio-regenerative life support testing. Packing the Dragon capsule prior to hatch closure, the crew secured over 4,000 pounds of valuable scientific samples and hardware for return to Earth.
The biological specimens, including long-duration cellular and blood samples, will be immediately transferred to NASA health researchers upon recovery to analyze the long-term physiological impacts of weightlessness on the human body. The return cargo also includes deep-freeze biological specimens tracking long-duration bone density decay, external space-environment samples exposed via the Bartolomeo platform, and commercial crystal growth plates optimizing pharmaceuticals in microgravity.
The rapid transfer of biological samples from splashdown to laboratory is critical, as the deep-freeze specimens must remain at controlled temperatures to preserve their scientific value. SpaceX's recovery vessel is equipped with cold storage and a mobile laboratory to begin preliminary processing before the crew and cargo reach shore.
Re-Entry and Recovery Sequence
Following its deorbit burn on Thursday morning, Dragon Freedom will shed its unpressurized trunk section before enduring atmospheric re-entry. Temperatures along the spacecraft's heat shield will reach nearly 3,500 degrees Fahrenheit (1,900 degrees Celsius) during peak deceleration. The deorbit burn, scheduled for approximately 10:46 a.m. EDT, fires the Draco thrusters to drop the spacecraft out of orbit, followed by trunk jettison at 10:42 a.m. EDT to expose the heat shield.
Drogue parachutes deploy at approximately 11:30 a.m. EDT at 18,000 feet altitude, followed by main parachute deployment at 11:31 a.m. EDT at 6,500 feet. The Pacific Ocean splashdown is targeted for 11:34 a.m. EDT. SpaceX's primary recovery vessel, Megan, is stationed off the California coastline to hoist the capsule onto its main deck. Flight surgeons and medical teams will perform initial health evaluations aboard the ship before helitransporting the crew to shore, completing one of the longest single operational flights in NASA's Commercial Crew Program history.
The recovery sequence is a well-rehearsed operation refined over multiple Crew Dragon missions, with the Crew-13 launch having demonstrated the same Falcon 9 and Dragon systems on the ascent side of the commercial crew program.
Frequently Asked Questions
As NASA Commercial Crew Program managers noted: "The crew is healthy, the vehicle is performing nominally, and we are ready for a safe return." After 237 days in orbit, four astronauts are heading home to a Pacific splashdown, closing out one of the longest single operational flights in the Commercial Crew Program's history.