After several delays, India's Shubhanshu Shukla is all set to travel to the International Space Station on Wednesday on an American commercial mission with three other astronauts, after SpaceX announced that the weather was 90 per cent favourable for blasts off. Axiom Mission 4, or Ax-4, is scheduled to launch from NASA's Kennedy Space Centre in Florida at 2:31 am (6:31 am GMT), with a brand-new SpaceX Crew Dragon capsule riding atop a Falcon 9 rocket. The mission will lift off from Launch Complex 39A.