Uznanski-Wisniewski

Personal data:

Birth date:  12 April 1984 Birthplace:  Lodz, Polish People's Republic Marital status:  married (2025) Children:   Selection date:  23.11.2022 Selection group:  2022 ESA Group Job:  MSP Status:  Ret. 15.07.2025

Spaceflights:

Slawosz inside the Columbus laboratory module of the ISS, June 2025.

Additional information:

• Education: Lódz University of Technology (M.Sc.Eng.), University of Nantes (M.Sc.), Polytech Nantes (Dipl.Ing.), Aix-Marseille University (PhD)
• Slawosz Uznanski-Wisniewski (né Uznanski); born 12 April 1984) is a Polish astronaut and engineer working at the European Space Agency (ESA), formerly employed at CERN. In June 2025, he became the second[a] Polish national to go to space, marking the country's return to crewed spaceflight after nearly 47 years and its first mission aboard the International Space Station. He was the 701st person in space and the 635th person to reach orbital flight.
• On board the ISS, Uznanski-Wisniewski and his peers were set to take part in 60 experiments evaluated by researchers from 31 countries. 13 of those were proposed and developed by Polish companies, research institutes, and universities. Among others, these include: tests of advanced artificial intelligence algorithms in microgravity conditions, research on muscle-free communication using brainwaves, analysis of the impact of long-term stays in space on the astronaut's mental health, measurements of noise levels on the ISS and its impact on the crew, as well as research on the use of microalgae in future missions and in space medicine. Six direct calls between Uznanski-Wisniewski and Polish schoolchildren, journalists, and special guests were planned along with a programme of interviews and experiments, including 30 educational demonstrations.