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2 articles

How the Space Station Turns Exhaled Breath Back into Oxygen

Long-duration space missions require closed-loop life support systems to recycle waste into essentials. The International Space Station's Advanced Closed Loop System (ACLS) demonstrates this by converting exhaled carbon dioxide back into breathable oxygen through a multi-stage process.

Daron Krikorian·October 11, 2026

A NASA astronaut in a spacesuit stands on a desolate plain, gazing up at a Soyuz spacecraft descending through a colorful sunset sky, symbolizing a career's end.

Space Exploration

NASA astronaut Mike Fincke retires following medical evacuation

Just weeks after piloting a mission that returned in January, NASA astronaut Mike Fincke was medically evacuated from the International Space Station on January 7, 2025.

Daron Krikorian·August 13, 2026