‘Supernova discovery machine’ James Webb Space Telescope finds most distant star explosion on record

Red and yellow dots against a black ground with some circled with blue rings
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When it comes to hunting for the explosive deaths of massive stars in the early universe, the James Webb Space Telescope (JWST) is quite the cosmic detective. This celestial Sherlock Holmes has found evidence of 80 new early supernovas in a patch of sky as wide as a grain of rice held at arm’s length.


Not only is this 10 times more supernovas than have been uncovered before in such early cosmic history, but the sample also includes the earliest and furthest supernova ever seen. It’s one that exploded when the 13.8 billion-year-old universe was just 1.8 billion years old.

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