Who is Slawosz Uznanski? Know About His Qualification and Achievements

Get to know Slawosz Uznanski including his background, qualifications, and professional milestones. From earning his Ph.D. in engineering to working at the world-renowned CERN lab and being named a reserve astronaut by ESA, here is a detailed highlight on his path through the world of science and technology.

Nikhil Batra
Jul 15, 2025, 15:19 IST
Who is Slawosz Uznanski? Know his Biography
Who is Slawosz Uznanski? Know his Biography

Slawosz Uznanski is a Polish scientist and engineer who is gaining recognition for his impressive work in science, technology, and space research. In recent years, he made headlines by being selected as a reserve astronaut for the European Space Agency (ESA). Further, he is part of the Axiom Mission 4 which is set to be concluded on July 15, 2025. However, there’s more to him than just this big news. He has been an incredible and curious student and later in life became an engineer at CERN followed by being an astronaut candidate. His life has been full of hardwork, dedication and love for science. Here is a detailed overview on his early life and his qualifications. 

READ| List of Axiom Missions Till 2025

Early Life and Educational Background

According to the European Space Agency, Slawosz Uznanski was born in Poland in 1984. He was fascinated by how things work from a young age. Slawosz is highly educated and has a strong background in electronics and engineering. He earned his M. Sc. (hons.) from the Technical University of Lodz. He then moved to France for further studies and got an M.Sc. from Université de Nantes, France in 2008 which was followed by Diplôme d’Ingénieur from Polytech’Nantes, France in 2008. Later, he also got a Ph.D. from the University of Aix-Marseille, France in 2011. 

The POLSA website mentions: “Slawosz grew up in Lodz, Poland where he received his M.Sc. from the Technical University of Lodz, Poland in 2008 (with honours). Slawosz then moved to France to continue his studies, achieving an M.Sc. from Université de Nantes, France in 2008, Diplôme d’Ingénieur from Polytech’Nantes, France in 2008 and subsequent Ph.D. from the University of Aix-Marseille, France in 2011 (with honours).”

Career of Slawosz Uznanski

During his Ph.D. he was working as a radiation effects engineer at the company named STMicroelectronics where his role was to work upon the next European radiation-tolerant and radiation-hardened digital CMOS technologies for space applications. 

Later in 2011, he started working at European Organization for Nuclear Research (CERN) which is one of the biggest highlights of Slawosz’s career. During his initial role, he was leading radiation test campaigns in ESA. 

In the year 2013, he was appointed as a project lead at CERN and his role was to create a radiation tolerant power converter control system and his contribution has been a part of the Large Hadron Collider since 2017. 

Later from 2018 to 2020 he was in charge of the LHC which was followed by his selection as a member of the ESA astronaut reserve in the year 2022. He is now the second Polish astronaut to ever be selected by a space agency. The first was Mirosław Hermaszewski, who flew into space in 1978. Slawosz’s selection has made many people in Poland proud and has inspired young students across the country.

In the year 2024, he was chosen for Axiom Mission 4 and he completed an intensive training programme for this mission. 

In conclusion, Slawosz Uznanski is more than just a name in a headline as he’s a dedicated engineer, a scientist who loves solving complex problems, and now, an astronaut that is returning to earth after completing the Axiom 4 mission. As the world continues to explore space and build new technology, people like Slawosz will play a key role in shaping the future. 

Nikhil Batra
Nikhil Batra

Content Writer

    Nikhil comes from a commerce background, but his love for writing led him on a different path. With more than two years of experience as a content writer, he aspires to breathe life into words. He completed his B.Com. from DU and finds joy in traveling and exploring new and hidden places. Do drop your feedback for him at nikhil.batra@jagrannewmedia.com and let him know if you love his work

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