Ax-4 will mark the first time an astronaut from India or Poland visits the International Space Station. The mission will be commanded by former NASA astronaut Peggy Whitson, making her second trip to the ISS on behalf of Axiom Space.

Russian commander Alexey Ovchinin, NASA co-pilot Nick Hague and astronaut Christina Koch lifted off aboard a Soyuz rocket Thursday from the Baikonur Cosmodrome in Kazakhstan, heading for the International Space Station to raise the research outpost’s crew complement back to six. The Soyuz booster launched at 1914 GMT (3:14 p.m. EDT), and docking at the space station occurred at 0101 GMT (9:01 p.m. EDT).

Assuming good weather and a smooth final few weeks on the International Space Station, astronauts Doug Hurley and Bob Behnken are scheduled to undock from the orbiting research outpost Aug. 1 and return to Earth the next day to wrap up a 64-day test flight of SpaceX’s Crew Dragon spaceship.