16 Things Astronauts Can’t Take to Space—and What They Use Instead

Space exploration demands precision, safety, and practicality, which means even the smallest items aboard spacecraft are subject to strict scrutiny. Everyday objects that seem harmless on Earth can pose significant risks in microgravity, from floating debris to system malfunctions.

Here are 16 surprising items banned from space and the innovative solutions astronauts use instead, showcasing how safety shapes life among the stars.