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slawosz uznanski

Astronaut portrait - Sławosz Uznański. Credits: ESA - A. Conigli
Sławosz Uznański-Wiśniewski

Sławosz Uznański training at the European Astronaut Centre

Project astronaut Sławosz Uznański began his training at the European Astronaut Centre (EAC) in Cologne on 1 September 2023. Over the past months, he has been diligently preparing for his future space mission. Here’s a sneak peek into what these preparations looked like.  Back to the classroom Astronaut training includes many hours of theoretical classes […]

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Astronaut portrait - Sławosz Uznański. Credits: ESA - A. Conigli
Sławosz Uznański-Wiśniewski

ESA astronaut class of 2022: Astro Chat with Sławosz Uznański

In Episode 10 of this ESA Explores podcast series, we spoke to Sławosz Uznański, an ESA project astronaut from Poland, about his training and preparations for a future mission to space.

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Astronaut portrait - Sławosz Uznański. Credits: ESA - A. Conigli
Sławosz Uznański-Wiśniewski

Sławosz Uznański from Poland to train as a project astronaut at the European Astronaut Centre

As of 1 September 2023, Sławosz Uznański joined ESA as a project astronaut anticipating flying on a future space mission.

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Astronaut portrait - Sławosz Uznański. Credits: ESA - A. Conigli
Sławosz Uznański-Wiśniewski

Mid-mission update: Sławosz’s first week on the Space Station

The Axiom Mission 4 (Ax-4) crew arrived safely at the International Space Station on 26 June 2025. Since then, ESA project astronaut Sławosz Uznański-Wiśniewski has hit the ground—well, the microgravity—running, diving straight into science, education and outreach as part of this packed two-week mission. 

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Astronaut portrait - Sławosz Uznański. Credits: ESA - A. Conigli
Sławosz Uznański-Wiśniewski

A new adventure on the International Space Station

Watch the highlights of a new adventure on the International Space Station as ESA project astronaut Sławosz Uznański-Wiśniewski begins the Ignis mission.

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Astronaut portrait - Sławosz Uznański. Credits: ESA - A. Conigli
Sławosz Uznański-Wiśniewski

Ignis ignited

ESA project astronaut Sławosz Uznański-Wiśniewski has officially begun his first space mission, entering the International Space Station on 26 June 2025. He is pictured here among the now 11-member crew on board the Station, representing six different countries, shortly after the arrival of Axiom Mission 4 (Ax-4).

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Astronaut portrait - Sławosz Uznański. Credits: ESA - A. Conigli
Sławosz Uznański-Wiśniewski

Countdown to Ignis

As the countdown to Axiom Mission 4 (Ax-4) enters its final phase, ESA project astronaut Sławosz Uznański-Wiśniewski has completed an intensive training programme across the globe. Scheduled to launch no earlier than 8 June 2025, Ax-4 will take him and his crewmates to the International Space Station for a two-week mission focused on science, technology and international collaboration.

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Astronaut portrait - Sławosz Uznański. Credits: ESA - A. Conigli
Sławosz Uznański-Wiśniewski

Grasping for space debris solutions

In preparation for his upcoming mission with Axiom Space, ESA project astronaut Sławosz Uznański is getting to grips with a first taste of space exploration during the most recent ESA parabolic flight campaign.

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Astronaut portrait - Sławosz Uznański. Credits: ESA - A. Conigli
Sławosz Uznański-Wiśniewski

Thumbs up for training

Sławosz Uznański, ESA project astronaut from Poland, gives a “thumbs-up” from the heart of the action inside the Columbus training mockup at ESA's European Astronaut Centre in Cologne, Germany.

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Astronaut portrait - Sławosz Uznański. Credits: ESA - A. Conigli
Sławosz Uznański-Wiśniewski

Liftoff of Axiom Mission 4

The Axiom Mission 4 (Ax-4) crew lifts off to the International Space Station atop a SpaceX Falcon 9 rocket from launchpad 39A at NASA’s Kennedy Space Center in Florida, USA, on 25 June at 07:31 BST/08:31 CEST (02:31 local time).

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