The Axiom-4 (Ax-4) mission, which is expected to carry four astronauts to the International Space Station, has already faced postponement four times.Now, a new concern has emerged for India's Shubhanshu Shukla,

The leak was detected in the Zvezda service module, which provides essential systems for the station’s operation.

The Axiom-4 mission launch, the fourth private astronaut mission to the International Space Station, was canceled Tuesday night after SpaceX detected a liquid oxygen leak in its Falcon 9 rocket.