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It’s a highly anticipated return that has only drawn more attention due to mounting geopolitical tensions over the last month, and NASA has repeatedly reaffirmed that it continues to work closely with Russian space agency Roscosmos.
The trio will say their farewells to the remaining space station crew and close the hatch between the Soyuz and the Rassvet docking module around midnight. The Soyuz is expected to undock at 3:21 a.m. ET Wednesday, and the spacecraft will experience its deorbit burn at 6:30 a.m. ET Wednesday.
The crew is expected to make their parachute-assisted landing at 7:28 a.m. ET southeast of the town of Dzhezkazgan.
Each step of the crew’s return will stream live on NASA’s TV channel and website.
After landing, Vande Hei will travel back to Houston aboard a Gulfstream jet, as other NASA astronauts have done before, and the cosmonauts will return to their training base in Star City, Russia.
Joint operations between NASA and Roscosmos at the Russian facilities at Baikonur, Kazakhstan, “continue to go well,” said Joel Montalbano, the manager of NASA’s International Space Station program, during a press conference on March 14.
Montalbano’s remarks came as Roscosmos chief Dmitry Rogozin made several fiery social media posts directed at the United States, including a heavily edited, partially animated video that appeared to threaten that Russian astronauts would abandon Vande Hei in space. Rogozin has long been known to share outlandish statements on social media. Former astronaut Scott Kelly just recently backed off of a Twitter war with Rogozin.
Vande Hei and Dubrov launched to the space station in April 2021, and together they have completed 5,680 orbits of Earth and traveled more than 150 million miles around our planet. Vande Hei has now broken the record for the longest single spaceflight by an American astronaut, which previously was set by Kelly at 340 days.
The extended mission will allow researchers to study the effects of long-duration spaceflight on the human body, like the Twins Study that Kelly and his twin, Mark, participated in during Scott’s long duration. The insights gathered from extended missions can better prepare NASA to send astronauts to the moon and on to Mars, according to the agency.
This was Vande Hei’s second spaceflight, so he has logged a total of 523 days in space. It was Dubrov’s first flight.
Meanwhile, Shkaplerov arrived on the space station in October along with a Russian director and actress who filmed the first movie in space. While they returned to Earth just weeks after their arrival, Shkaplerov remained on the space station and ends his fourth space mission with 708 total days spent in space.
Change of command
Shkaplerov handed over command of the International Space Station to NASA astronaut Tom Marshburn Tuesday morning. Before handing Marshburn a ceremonial “key” to the space station, signifying the change in command, Shkaplerov reflected on his time in space, including some of the situations the crew have faced.
“It’s like some satellites tried to kill us,” he said, causing the assembled crew of 10 astronauts and cosmonauts to laugh. His comment was in reference to a Russian anti-satellite test that created debris in November.
He also reinforced the close-knit and familial nature of the space station crew, especially given current geopolitical tensions.
“People have problems on Earth,” he said. “On orbit, we are one crew, and I think ISS is like a symbol of the friendship, cooperation (and) our flexible future of exploration of space. Thank you very much, my crew members. You are like my space brothers and space sister.”
Marshburn said it was an honor and privilege to accept command of the space station, “continuing the international partnership and that legacy in spaceflight.” Marshburn thanked Shkaplerov for being a “wonderful commander.”
“I can’t thank you enough for your dedication to the safety of the station, the safety of your crew, your humor, your friendship and your dedication to the flight control teams around the world,” Marshburn said.
Comings and goings
After the departure of Vande Hei, Dubrov and Shkaplerov, the remaining space station crew includes Marshburn, along with NASA astronauts Raja Chari and Kayla Barron, European Space Agency astronaut Matthias Maurer and the recently arrived Russian cosmonauts Oleg Artemyev, Denis Matveev and Sergey Korsakov.
When the Russian trio docked with the space station on March 15, they sparked speculation by donning bright yellow spacesuits trimmed with blue. It raised questions about whether the three were showing solidarity with Ukraine by wearing its national colors and rebuking their own government’s invasion. So far, no definitive answer has been given.
The space station won’t be home to a crew of seven for long. The private Axiom Space-1 mission, carrying former NASA astronaut Michael Lopez-Alegria and US crew members Larry Connor, Eytan Stibbe and Mark Pathy, is launching to the space station no earlier than April 6. The Axiom crew will return after 10 days.
Then, NASA’s SpaceX Crew-4 mission will bring NASA astronauts Kjell Lindgren, Bob Hines and Jessica Watkins, as well as ESA astronaut Samantha Cristoforetti, to the space station later in April.
No spacewalks are currently on the schedule during this time of heavy crew rotation. NASA continues to investigate a “more than normal” amount of water discovered inside Maurer’s helmet after his first spacewalk on March 23. A thin layer of water was found inside his helmet once he returned to the airlock nearly seven hours after beginning the spacewalk. The crew are trying to understand what caused this and determine how to fix it.
“The agency and our international partners are constantly identifying and mitigating risks of human spaceflight,” according to a NASA statement.