Joan Rivers, the raucous, acid-tongued comedian who crashed the male-dominated realm of late-night talk shows and turned Hollywood red carpets into danger zones for badly dressed celebrities, died Thursday. She was 81.

Friends, celebrities and others offered their reactions on social media.

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Inventor Lonnie Johnson stands with his Super Soaker water guns at JTEC Energy on Wednesday, Oct. 29, 2025, in Atlanta. Johnson, a former NASA engineer, is currently working on a new energy technology through his company’s JTEC device that turns thermal heat into usable energy. (Natrice Miller/AJC)