iss073e0251660 (June 26, 2025) --- ESA (European Space Agency) astronaut and Axiom Mission 4 Mission Specialist Sławosz Uznański-Wiśniewski shows off research hardware inside the International Space Station's Columbus laboratory module. The large box on the right is supporting a biotechnology study that looks at microalgae as a sustainable source for oxygen in spacecraft life support systems. The smaller box on the left provides a platform to test data processing and algorithms in microgravity.