LOS ANGELES (CBSLA.com) — Actor Leonard Nimoy, best known for playing Mr. Spock on “Star Trek”, died Friday at the age of 83.

Nimoy’s son, Adam Nimoy, said the actor died of end-stage chronic obstructive pulmonary disease at his Los Angeles home.

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His granddaughter Dani posted a tweet to Nimoy’s official Twitter account Friday morning.

“Hi all, as you all know, my Grandpa passed away this morning at 8:40 from end-stage chronic obstructive pulmonary disease. He was an extraordinary man, husband, grandfather, brother, actor, author-the list goes on- and friend. Thank you for the warm condolences. May you all LLAP. – Dani”

Fellow costars also turned to social media to honor their friend.

“Today, the world lost a great man, and I lost a great friend. We return you now to the stars, Leonard. You taught us to “Live Long And Prosper,” and you indeed did, friend. I shall miss you in so many, many ways,” George Takei said on his Facebook page.

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STORY: ‘Star Trek’ Actor Leonard Nimoy Dead At 83

Many other celebrities took to Twitter to react to his passing.

NASA’s official Twitter account also posted a tweet honoring Nimoy, including a picture from 1976 when the space shuttle Enterprise rolled out of the Palmdale manufacturing facilities and was greeted by officials and cast members from “Star Trek”.

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Dani Nimoy also mentioned special shirts will be available at SHOPLLAP.com, and all proceeds will go to the COPD Foundation.