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Ax-4 Mission Update: Flight Day #17

July 11, 2025
Ax-4 Pilot Shubhanshu Shukla inside the cupola aboard the International Space Station.

HIGHLIGHTS

After spending 16 days living and working aboard the International Space Station, the (Ax-4) crew is wrapping up their research projects and preparing to undock no earlier than Monday, July 14 at 7:05 a.m. ET. Commander Peggy Whitson, Pilot Shubhanshu “Shux” Shukla, and Mission Specialists Sławosz “Suave” Uznański-Wiśniewski and Tibor Kapu have made the most of their time on orbit. Since arriving, they’ve been involved in more than 60 scientific research activities and participated in over 20 outreach events, advancing research that will contribute to the future of space exploration while inspiring the next generation back on Earth.

о, NASA, and SpaceX will provide of the Ax-4 crew’s departure from the International Space Station via , , and SpaceX’s . Additional details and timing updates of Dragon’s re-entry and splashdown will be shared as the undocking date approaches — be sure to check back regularly for the .

RESEARCH

Shux performed a centrifugation of and froze microalgae samples. These microorganisms are being closely studied for their potential to support life far from our home planet.

Meanwhile, the crew continued the study, which investigates how spaceflight affects eye movement and coordination.

The crew also gathered data for the project, which analyzes how spaceflight alters vocal performance and speech patterns. They also participated in the , a cognitive study exploring how astronauts learn and adapt in microgravity.

Rounding out the day, the crew gathered samples for other human health studies, including , , , and . These investigations aim to deepen our understanding of how the human body responds to life in space, with the goal of ensuring astronaut health on future long-duration missions.

OUTREACH

Today, the crew joined CNN International for an exclusive interview about the Ax-4 mission. The segment will air on Monday, July 14 during the 4:00 p.m. ET hour.

Updates

Media