In 1972, NASA sealed 3 astronauts inside a 20-foot chamber for 56 days to rehearse Skylab; the ground experiment exposed hardware and medical problems before launch

Discover how NASA's 1972 Skylab Medical Experiment Altitude Test revealed critical insights about human health, diet, and equipment reliability in space missions. Learn about the astronauts' experiences in a sealed chamber for 56 days and the impact on future space explorations.

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