Under the SpaceX Crew-7 mission, four astronauts of different countries arrived at International Space Station (ISS) on Sunday (EDT) after a nearly 30-hour journey. "I've to keep reminding myself…this isn't a dream," NASA astronaut Jasmin Moghbeli said. The astronauts will spend about six months on ISS, performing experiments. They'll relieve Crew-6 astronauts, who'll return to Earth next month.