Friday, 11 July, was already the 17th day of the Ax‑4 mission and at the same time the 15th day of operational work for the crew aboard the International Space Station. The additional days in space allowed for the completion of research and the undertaking of additional scientific and educational tasks.

• Sławosz Uznański‑Wiśniewski began the day working on the Immune Multiomics experiment, which involved collecting blood in specially prepared tubes designed for working in microgravity. He also participated in EEG Neurofeedback, Mxene in LEO, Human Gut Microbiota, as well as psychophysiological experiments such as Muscular Stimulation, Microbiome Profiling, Voyager Displays and Voice in Space.

  
  

• It is worth noting that thanks to the extended stay, Sławosz also attempted to photograph Poland from orbit—the time window for this long-awaited moment will open once more on 13 July.

  
  

• The remaining crew members carried out their projects: Shubhanshu Shukla studied microalgae and conducted experiments on visual‑motor perception (Voyager Displays), Peggy Whitson coordinated the activities of the entire crew, and Tibor Kapu tested motion sensors as part of the IMU‑DRS project.

At the end of the day, the crew gave a joint interview for CNN International, which will be broadcast on 14 July at 22:00 Polish time.