Ax-4, Axiom’s fourth crewed flight to the International Space Station, ISS, was launched on a SpaceX Falcon 9 rocket on June 25, 2025.
It was earlier scheduled for June 11, but a liquid oxygen leak in the booster delayed the launch by a day.
Another leak in Zvezda, the Russian service module in the space station, further delayed things till June 19.
The lift-off from Launch Complex-39A, NASA’s Kennedy Space Centre, Florida, was further delayed due to repairs in the ISS which forced NASA to postpone the launch date to June 22 and then 25 June, 2025.
A fomer NASA astronaut Peggy Whitson is mission commander.
The other crew member is Shubhanshu Shukla of India as mission pilot.
Sławosz Uznański-Wiśniewski from Poland and Tibor Kapu from Hungary are mission specialists.
It is the first time astronauts from India, Poland or Hungary are in the ISS.
They brought as many as 60 science experiments to the ISS.
Their expedition is for two weeks.
