Scientists discover a powerful and surprisingly long-lasting gamma ray explosion outside our galaxy Science Sep 9, 2025 12:08 PM EDT

CAPE CANAVERAL, Fla. (AP) — Scientists have discovered a gamma ray explosion outside our galaxy that’s not only exceptionally powerful, but also long-lasting.

Telescopes on Earth and in space — including Hubble — have teamed up to study the unique explosion of high-energy radiation first observed in July. Astronomers reported Tuesday it’s unlike anything they’ve witnessed before.

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The repeated bursts of gamma rays were detec

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