Yoda: Lucky to be a child of the Almighty One, not everyone is. Powerful with the Force I was, but mortal I still was. Matter now,that does not. A Force Spirit I am now. Ageless. Eternal.
 
Princess Celestia: Master Yoda, I’ve seen the futire of your universe in my visions. There’s another war ahead of you,a fight against a dark lord of the Sith…and I’m sorry that I can’t help.
 
Yoda: Apologize, you need not. Your fight this is not, and understand it you do. In Rey and Finn’s hands, the fate of my universe now lie. Chosen them to free my universe from the tyranny of the First Order, the Force has.

Have a headcanon: Lotion is reeeeeally effective in Equestria. (Note that old ponies are old because they can’t afford it or they’re Earth Pony tough nuts that eat cereal without milk. ;3
 
Additionally, we all know there exist BPs in flashbacks that have not changed in appearance, right? Well… X3 )

Some work she’s had done. Perhaps the name of her surgeon she’d like to tell us?

@Background Pony #304D  
There is nothing to say she isn’t mortal.

yoda is mortal, you are not celsetia. be like saying a turtle aged better than your doberman.

Nah.  
 

And she’s probably a few hundred years older than him.

I think this is old. It looks familiar.

ah, but long lived lready, you are. less than a century, normally does my race live, yet with the force, nine lifetimes i have roamed, without need of becoming another being.

Celestia and Luna beg to differ, Muppet.

“Oh really?”