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It's the biggest explosion since the Big Bang

byMelissa Hekkers
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18 Jun 2025 14h45
a bright white ball of light in the middle of a space
© Unsplash

This cosmic explosion occurred in a distant galaxy, due to the shredding of a giant star by a supermassive black hole.

Thanks to their overwhelming gravitational pull, black holes are able to shred any object, star, or planet that gets too close. When such a phenomenon, known as tidal disruption, occurs, the planets emit characteristic bursts of light.

When these events involve supermassive black holes exceeding a million solar masses and stars at least three times heavier than the Sun, they produce an extreme and lasting brightness, which our astronomical instruments are able to detect.

It is estimated that this phenomenon releases an amount of energy in one year 100 times greater than what the Sun would produce in 10 billion years. Named Gaia18cdj, the most violent erupted about 25 times more than the brightest supernova ever observed.

(MH with MaSi - Source : ABC.es - Photo : © Unsplash)