[Steven Tyler]

I’m guessing stress wondering if you ever get home...

[lee martell]

A “Shocking Hair Color Shift”?
Only their Hairdresser knows for sure.

[Repeal The 17th]

“star wars fish guy”
???

[BobL]

Something to do with relativity - as they move faster, they age faster.

[Governor Dinwiddie]

No Grecian Formula or Lady Clairol in space.

[frank ballenger]

https://www.google.com/search?q=images+star+trek+aging+speeded+up&sca_esv=c40def4ba69778d6&source=hp&ei=06rcZ6q8N9DE0PEPt5nsuQM&iflsig=ACkRmUkAAAAAZ9y44

[al baby]

She went from an Arby’s Junior to a Arby’s Super Deluxe king

[wildcard_redneck]

If you were ever wondering why astronut and communist congressman Mark Kelly looks like a butt plug with eyes, now you know.

[dfwgator]

Or was the hair gray before, but they weren’t able to dye their hair?

[ifinnegan]

I think she dyed her hair.

[E. Pluribus Unum]

[enumerated]

What’s with the irrelevant links?

[yesthatjallen]

"here’s what’s behind the shocking color shift "

They didn't think to bring hair dye.

[Vaquero]

She didn’t bring her hair dresser with her to do touch ups

[Red6]

We weren’t made for no gravity.

Besides immune system dysfunction, muscle and bone loss, “gray hair” as discussed by this article, you’re being cooked by radiation. There isn’t 250,000 feet of atmosphere protecting you.

[ichabod1]

they’re old, jim. that’s the reasonwhy.

[SamAdams76]

We are living in a science fiction world.

[enumerated]

So the headline is bs.

[linMcHlp]

Not exactly eating at Olive Garden.

[Rio]

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