Indian Air Force Group Captain Shubhanshu Shukla has returned to Earth after an 18-day mission aboard the International Space Station (ISS) as part of the Axiom-4 mission. But while his journey concluded with a safe splashdown off the California coast, its significance marks a powerful liftoff for India’s human spaceflight ambitions.

Shukla’s flight was more than just a personal milestone—it was a historic moment, marking the first time an Indian astronaut lived and worked aboard the ISS. It also lays crucial groundwork for Gaganyaan, India’s homegrown mission to send humans into space using its own launch systems. His experience offers both technical lessons and symbolic momentum for a nation on the cusp of joining the world’s few spacefaring powers with independent crewed capabilities.

Figure 1. Shubhanshu Shukla.

A pioneering role on the Axiom-4 missions

As the pilot of Axiom-4, Shukla had a vital job: operating SpaceX’s Crew Dragon spacecraft during critical phases including launch, docking with the ISS, undocking, and re-entry. This made him the first Indian military pilot to handle real-time flight operations aboard a commercial spacecraft, working alongside space veteran Peggy Whitson. This exposure to the technical, operational, and psychological demands of spaceflight is invaluable as India prepares for its own crewed missions.

During his stay in orbit, Shukla participated in over 60 scientific experiments—many spearheaded by Indian scientists. These ranged from studying the growth of moong and methi (traditional Indian crops) in microgravity, to analyzing cyanobacteria and microalgae as potential life-support components, and observing tardigrades to explore biological resilience in space. Other projects examined muscle atrophy, techniques for diabetes monitoring, and the effects of prolonged screen exposure in microgravity. Far from being abstract science, these experiments deliver practical insights essential to designing life-support systems and healthcare protocols for long-duration missions—critical steps toward sustainable Indian human spaceflight.

Inspiring a new generation

Beyond science, Shukla’s time aboard the ISS served an equally important purpose: education and outreach. By interacting remotely with Indian students and researchers, he offered a firsthand look at daily life in space—from managing hygiene without showers to adapting everyday routines in microgravity. These lived experiences provide ISRO with real-world data on human adaptation beyond Earth’s atmosphere and help spark interest and curiosity among the next generation of Indian scientists and engineers.

Reference:

1. https://economictimes.indiatimes.com/news/india/why-shubhanshu-shukla-matters-so-much-for-indias-space-tech/articleshow/122514839.cms?from=mdr

Cite this article:

Keerthana S (2025), Shubhanshu Shukla Returns to Earth After Spending 20 Days in Space, AnaTechMaz, pp.472