The author's name, as well as several of his books, almost immediately became trending topics on the popular social media website when the news broke. Fans also tweeted their favorite Bradbury quotes, such as You must stay drunk on writing so reality cannot destroy you.
Among those who paid tribute was British director Edgar Wright: A standing ovation for Mr Ray Bradbury, he tweeted. Our imagination will be dimmer without him.
Author Andrew S. Fuller tweeted his thanks for Bradbury's many works: Thank you, Uncle Ray, for silver locusts, lightning rods, the April Witch, dandelion wine, Halloween tree, sound of thunder ...
Famed Jeopardy contestant Ken Jennings paid his respects via Twitter: Somebody go back in time and step on a butterfly so Ray Bradbury lives to be a million.
Former supermodel Kathy Ireland tweeted in honor of the writer: Ray Bradbury, author of fantasy, mystery and scientific-based themes, has passed away at age 91. He will be missed.
Author Steve Niles tweeted RIP Ray Bradbury. You left a lasting impression on the entire planet and beyond. You will be missed.
Actor Kal Penn also mourned the loss. Aww this is sad news, he tweeted.
The person behind the Twitter handle @pourmecoffee recalled a childhood memory of a Bradbury book: I punched my brother in the face growing up for stealing and losing my copy of The Martian Chronicles. RIP, Ray Bradbury.
The Office actor Rainn Wilson tweeted in memory of the beloved author: RIP Ray Bradbury You made Mars, time travel & Illustrated Men more real than reality for a 14-year-old me.
Children's horror fiction writer R.L. Stine had just recently tweeted about Bradbury on May 31: I think Ray Bradbury is one of our most under-rated authors. I read Dandelion Wine once a year to remember what good writing is about.
The Twitter handle @TSAgov, which takes a tongue-in-cheek look at the organization that has annoyed many an airline passenger, paid tribute in its own way: To honor the memory of Ray Bradbury, we'll be confiscating/burning your books at the Security Gate.
Bradbury's grandson, Danny Karapetian, spoke about his late grandfather with io9.com.
If I had to make any statement, it would be how much I love and miss him, and I look forward to hearing everyone's memories about him, he said. He influenced so many artists, writers, teachers, scientists, and it's always really touching and comforting to hear their stories.
Are you a fan of the late Bradbury? What's your favorite work of his?