Three American astronauts and a Russian cosmonaut are scheduled to take off Sunday evening from Florida to the International Space Station (ISS), where they will stay for approximately six months. Liftoff of the SpaceX Falcon 9 rocket carrying them is scheduled for 10:53 p.m. local time Sunday (03:53 GMT Monday) from the Kennedy Space Center. Initially scheduled for Saturday, the launch was postponed by 24 hours due to unfavorable weather. If a further postponement is necessary on Sunday, another shooting opportunity is planned for Monday evening.
More than 200 scientific experiments carried out in six months
The capsule which is to carry the crew, named “Endeavour” and placed at the top of the rocket, has already been used for four previous missions manned by Elon Musk’s company. The four passengers this time are members of Crew-8, the eighth regular rotation mission of the American crew in the ISS carried out by SpaceX for NASA. The American Michael Barratt is the only Crew-8 astronaut to have already visited the flying laboratory.
However, it will be the first space trip for the two other Americans – Matthew Dominick and Jeanette Epps – as well as Russian cosmonaut Alexandre Grebionkin. NASA and the Russian space agency Roscosmos, which together operate the ISS, have set up an astronaut exchange program, each taking turns transporting a crew member from the other country. This program was maintained despite the war in Ukraine, and the ISS is now one of the very few subjects of cooperation between Washington and Moscow.
The members of Crew-8 will join the seven people already on the ISS. After a handover period of a few days with the four members of Crew-7 – an American, a Dane, a Japanese and a Russian – they will return to Earth aboard their own Dragon capsule. More than 200 scientific experiments must be carried out during the six months spent by Crew-8 in the flying laboratory, which has been permanently inhabited for 23 years.
While the first years of the station’s life were dedicated to its construction, astronauts can now devote more time to science. “Many of the things we dreamed of a long time ago are coming to fruition today,” NASA boss Bill Nelson said this week, citing stem cell research as an example. But the age of the station also has a downside: NASA and Roscomos are monitoring a “leak” located at the end of a Russian module, and whose flow rate has recently increased, declared this week Joel Montalbano, head of the station. of the ISS program at NASA. A hatch is currently permanently closed to isolate the leak from the rest of the station.