Cocooned, dying stars can cause sudden, bright explosions that baffle scientists

Extremely fast cosmic explosions that puzzle scientists could be explosions arising from dying stars, new research suggests.

Nicknamed fast blue optical transients (FBOTs), because of their “blue” heat and very rapid evolution, only a few of these bursts have been recorded. (Astronomers often give them evocative nicknames, such as “the camel” or “the koala”.)

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