The Axiom-4 (Ax-4) mission, recently seen in the news, comprises astronauts from which of the following countries? 

• The launch of the Axiom-4 mission has been postponed again due to a technical issue with SpaceX’s Falcon 9 rocket. Falcon 9 is a reusable, two-stage rocket designed and manufactured by SpaceX for the reliable and safe transport of people and payloads into Earth orbit and beyond. The Axiom-4 (Ax-4) mission  • It will spend 14 to 21 days on the ISS, conducting over 60 experiments in collaboration with 31 countries, covering fields like biomedical research, Earth observation, and materials science.  • Some experiments involve ISRO, offering India key insights for its upcoming Gaganyaan mission, now expected in 2027. • The Ax-4 crew comprises astronauts from India, Poland, Hungary, and the United States. ƒ Shubhanshu Shukla will be India’s second national astronaut to go to space since 1984.  • The mission highlights Axiom Space’s role in advancing international access to low-Earth orbit.