Indian Astronaut Shubanshu Shukla Concludes Historic ISS Mission

On July 15, 2025, at 3:00 PM Indian Standard Time, astronaut Shubanshu Shukla completed his 18-day journey to the International Space Station (ISS) and returned to Earth. The Dragon spacecraft carrying all astronauts landed in San Diego, California. After undocking from the ISS at 4:45 PM on Monday, the Dragon capsule began its journey back to Earth. Shubanshu had arrived at the ISS on June 25 at noon, alongside three other astronauts as part of the Axiom-4 mission, taking 28 hours to reach. However, the return trip was completed in just 23 hours. Shubanshu is noted as the first Indian to reach the ISS.

The mission was initially planned for 14 days but extended to 18 days. During this time, a total of 60 experiments were conducted, including 7 from ISRO. Shubanshu is bringing back 263 kilograms of scientific materials and data. This mission is significant for ISRO as India’s first manned space mission, Gaganyaan, is set to launch in 2027. The total expenditure for Shubanshu's mission was approximately 550 crores.

While at the ISS, Shubanshu and his fellow astronauts conducted over 60 scientific experiments. The Dragon spacecraft returned with more than 580 pounds of cargo in addition to the four crew members.

Shubanshu worked on a microalgae experiment, collecting samples that could potentially serve as sources of food, oxygen, and biofuel for future space missions.

Another study focused on gathering data to understand how astronauts perceive and adapt to their environment in orbit.

Additionally, research was conducted on blood circulation in the brain, which could aid in treating both astronauts in space and patients on Earth.

Upon landing, Shubanshu will undergo a 7-day isolation period after spending 18 days in microgravity. During this rehabilitation program, flight surgeons will monitor him closely. Before returning to India, he will need to complete several medical, physical, and psychological evaluations.