ISS astronauts return with gray hair — here’s what’s behind the shocking color shift

NY Post ^ | March 20, 2025, | Brooke Kato

[Rio]

She’s 59 years old. Grey is likely I should think. Would not have shown during the original short-duration mission.

[metmom]

“A few have asked me why Sunita Williams has grey hair and looks ‘tired’ coming back home from space,” Emily Carney, a former US Navy nuclear technician and space historian, wrote on Threads.

Nine months of being confined to that small a space and they have to ask?????????

[FoxInSocks]

You could have searched for “Admiral Ackbar” instead of “Star Wars fish guy.”

[brooklin]

I think you have hit on the correct answer.

[Pennsyltucky Boy]

Apparently no scrunchies or hair bans either. That may be what comes of allowing your hair to stand on end for 8 or 9 months. Can you imagine the amount of loose hair drifting around in that space station?

[Governor Dinwiddie]

The irony is that the workers who assemble this stuff work in clean rooms which automatically
vacuum you upon entry. They require hair covering and clean room overalls and shoes.