Discover how a small wrist mirror helps astronauts inspect equipment, preserve safety, and manage life support during spacewalks.

Learn how microgravity, radiation, and isolation change the human body in space, from muscles and bones to the brain, eyes, and immune system.

Discover why astronauts wear orange suits, how they differ from white space suits, and why the color is critical for safety and rescue.

Spacesuits are bulky because they must protect astronauts from vacuum, radiation, temperature extremes, and micrometeoroids while keeping them alive and mobile.

Explore how astronauts prepare their muscles, bones, balance, and endurance for the extreme physical demands of spaceflight.

Astronauts often grow slightly taller in microgravity because spinal discs expand and the spine decompresses.

Explore the medical equipment on the ISS, how astronauts handle emergencies, and why space medicine relies on compact, multipurpose tools.

Learn how astronauts protect their bones, muscles, hearts, and minds during long missions in microgravity.

Spacesuits need cooling to prevent dangerous heat buildup during work in vacuum, sunlight, and inside sealed life-support systems.