Hollywood is mourning the loss of Leonard Nimoy.
The beloved actor, who was best known for his role as Spock in the hit Star Trek series, passed away today at the age of 83.
His wife, Susan Bay Nimoy, confirmed his passing to the New York Times, citing the cause of his death as end-stage chronic obstructive pulmonary disease.
Nimoy was reportedly hospitalized last week for chest pains, but was tweeting as recently as Monday, when he wrote: "A life is like a garden. Perfect moments can be had, but not preserved, except in memory." He signed off with his signature, "LLAP [Live Long and Prosper]."
Here's how celebs are paying tribute to the beloved actor:
"I loved Spock." ?President Obama #RIPLeonardNimoy #LLAP pic.twitter.com/vmwjnQ3Zm3
— The White House (@WhiteHouse) February 27, 2015
William Shatner: "I loved him like a brother. We will all miss his humor, his talent, and his capacity to love."
God Bless You, Leonard Nimoy... May Angels guide thee to thy rest!
#agoodman
#talented
#funny
#awesome
? LeVar Burton (@levarburton) February 27, 2015
We are deeply saddened to report the passing of Leonard Nimoy. He died this morning at the age of 83 #LLAP pic.twitter.com/M5994t9HIL
? Star Trek (@StarTrek) February 27, 2015
It is with sadness that I heard of Leonard Nimoy's death. I was lucky to spend many happy, inspiring hours with him. He won't be forgotten.
— Patrick Stewart (@SirPatStew) February 27, 2015
RIP Leonard Nimoy. So many of us at NASA were inspired by Star Trek. Boldly go... http://t.co/qpeH5BTzQc pic.twitter.com/nMmFMKYv1L
? NASA (@NASA) February 27, 2015
#LLAP RIP to the best First Officer. @TheRealNimoy
? Jonathan Frakes (@jonathansfrakes) February 27, 2015
We stood on your shoulders, and wouldn?t have had a galaxy to explore if you hadn?t been there, first. Thank you, Leonard, Rest in peace.
? Wil Wheaton (@wilw) February 27, 2015
. @TheRealNimoy
I have been, and always shall be, your fan.
Thank you.
? Nathan Fillion (@NathanFillion) February 27, 2015
Leonard Nimoy will always be a beloved legend ??
? Kat Dennings (@OfficialKat) February 27, 2015
RIP, Mr. Nimoy.
You really did live long and prosper, and we were all the richer for it.
? Jeri Ryan (@JeriLRyan) February 27, 2015
"Of all the souls I have encountered in my travels, his was the most... human.? Live long and prosper.
? Bill Prady (@billprady) February 27, 2015
#RIP Leonard Nimoy incredibly sad Spock has died
? Chris Harrison (@chrisbharrison) February 27, 2015
HAIL HAIL, A GENIUS HAS VACATED THIS REALM! #LeonardNimoy gets beamed up 2 Zeir Anpin-the Endless Intelligence of Infinity. Rest in Peace.
? Roseanne Barr (@therealroseanne) February 27, 2015
Leonard Nimoy has died. I've set my phaser on "weep."
? Gary Shteyngart (@Shteyngart) February 27, 2015
Woke up to the awful news that Leonard Nimoy passed. RIP to a true gentleman. Not many of those left in our Biz.
? Marina Sirtis (@Marina_Sirtis) February 27, 2015
A sad day for all of us. Live long and prosper ... then rest in peace. http://t.co/oU5B9HM7Oj
? Robert Picardo (@RobertPicardo) February 27, 2015
RIP Leonard Nimoy pic.twitter.com/uIcnvI8wNN
? J.K. Rowling (@jk_rowling) February 27, 2015
Have a great star trek, Leonard Nimoy. You will be greatly missed. RIP pic.twitter.com/lzArOQkru6
? Golden Globe Awards (@goldenglobes) February 27, 2015
He was, and always shall be, a friend to all of us. Thanks, @TheRealNimoy for reminding us all to live long and prosper. #LLAP
? Virgin Galactic (@virgingalactic) February 27, 2015
He created a role that nobody else could play. Multitalented writer,actor,director. A terrific&sweet man. RIP Leonard Nimoy #Spock #StarTrek
? Larry King (@kingsthings) February 27, 2015
I used to watch a lot of #StarTrek episodes as a kid.. So sad to hear of his passing :( #RIPSpock
? Camilla Luddington (@camilluddington) February 27, 2015
Goodbye, Leonard. You will be greatly missed. #LLAP pic.twitter.com/AcdglYh2by
? The Simpsons (@TheSimpsons) February 27, 2015