Mandy Moore, Olivia Munn, Ann Curry and Other Celebs Tweet Tributes to Neil Armstrong

The Saturday death of Neil Armstrong led many celebs to take to Twitter to express their thoughts, condolences and thanks. Here's just a small sampling of how they reacted to the death of the first man to walk on the moon, who passed at age 82.

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Will.i.am: “RIP to the original moonwalker. @GodSpeedNeilArmstong #reachforthestars.”

Olivia Munn: “RIP Neil Armstrong. Thank you for taking the first step for us…”

Ryan Seacrest: “Thanks Neil Armstrong for bringing the moon into our living rooms & curiosity into our minds. One giant loss for mankind.”

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Alyssa Milano: “☾ Rest in peace, Neil Armstrong. You are such an inspiration…”

Mandy Moore: “RIP, Neil Armstrong…..a Hero who changed History.”

Elizabeth Banks: “RIP Neil Armstrong – an inspiration to us all & American hero.”

Richard Branson: “RIP Neil Armstrong. My first inspiration to try to make space travel possible for all. A hero for anyone who looks to the stars & dreams.”

Bill Rancic: “Neil Armstrong was a great man. I had the privilege to enjoy several dinners with him in Malaysia & will never forget his great stories.”

Ann Curry: “Neil Armstrong-1st to step on the moon.. “That’s one small step for man, one giant leap for mankind”..has died at 82. #respect.”

Piers Morgan: “RIP Neil Armstrong – the man who dared us all to dream.”