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Sleeping on ISS most difficult task: Shubhanshu

Published on: Jul 05, 2025 07:10 AM IST

Group Captain Shubhanshu Shukla, the first Indian astronaut on ISS, shares challenges and experiences of space life and scientific research.

A week on board the International Space Station (ISS), Group Captain Shubhanshu Shukla says sleeping is difficult. Not because there’s too much to do, but because the time is limited. On June 26, Shukla scripted history on being the first Indian astronaut on board ISS.

Group Captain Shubhanshu Shukla

“The most difficult task is to go to sleep because of the time that is around you. You know you are here for a short time and you want to do more and more,” said Shukla during his interaction with school students from India via Ham radio on Friday afternoon. “But as you understand that there are activities planned, you also need to get rest.”

In his 10-minute communication starting 3.47pm, Shukla, who connected to Isro’s UR Rao Satellite Centre, Bengaluru, answered questions on his experience flying to space, experiments he is undertaking and importance of international collaboration for the success of a space mission like Axiom-4. His outreach via amateur radio interaction was livestreamed by Space India, which is an educational organisation working with schools across India.

Stating that rocket launch was very dynamic, the Lucknow resident recounted his journey to ISS. “The experience was exhilarating.. (the rocket launch) was very fast, and as you go higher you go faster. The accelerations were quite high.”

As he explained that the rocket goes in two stages, Shukla said, “The first stage was fast. And the second stage accelerates due to the velocity of 8kms per second.”

He pointed out that the Ax-4 mission was the “power of global collaboration”, one that allowed him to look at the earth from space. “It (the earth) is big. It is very beautiful and it reminded me of how fortunate we are to be in this planet and with everything we have.”

A week on ISS, a statement from Axiom Space read, “In just seven days, the Ax-4 astronauts have already made significant contributions to scientific research...With more than a hundred sunrises and sunsets witnessed from orbit, the Ax-4 mission is advancing science progress in space and inspiring a new generation of explorers.”

By the end of their time on ISS, the Ax-4 mission comprising commander Peggy Whitson, mission pilot Shukla and mission specialists Sławosz Uznański-Wiśniewski and Tibor Kapu would have conducted 60 experiments representing 31 countries.

 
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