Las Vegas Dermatologist Kendall Egan MD Explains Skin Changes in Space and Real Life Space and Skin Aging Is Hard on Skin—But So Is Modern Life It might seem like astronauts would age more slowly in space. In reality, the opposite is often true. Research from NASA and spaceflight studies shows that microgravity, radiation, and environmental stressors can lead to measurable changes in skin structure and function. Surprisingly, many of these changes mirror what we see every day