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Black Holes or Black Hole Stars? Astronomers Spar Over Webb Telescope’s ‘Little Red Dots.’

Charlie Wood· 14 septembre 2026

The James Webb Space Telescope spots mysterious “little red dots” everywhere. A bold new theory suggests they’re suns dozens of times larger than our entire solar system. The post Black Holes or Black Hole Stars? Astronomers Spar Over Webb Telescope’s ‘Little Red Dots.’ first appeared on Quanta Mag…

Résumé

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James Webb's discovery

The James Webb Space Telescope, launched to observe the early universe, detected mysterious objects called little red dots.

These tiny, bright red specks of light appeared in almost every image taken by the telescope.

Initially, astronomers thought they might be distant galaxies, but their extreme brightness suggested they were too massive to exist so early in the universe’s history, earning them the nickname universe breakers.

Later observations revealed that these dots emitted light patterns resembling those of supermassive black holes, which are typically invisible but surrounded by glowing, swirling gas.

However, the dots lacked expected features like flickering or X-ray emissions, puzzling researchers.

Two teams of astronomers, led by Anna de Graaff and Rohan Naidu, proposed a radical new idea: these dots could be black hole stars, a hybrid object combining the energy of a black hole with the appearance of a star.

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