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flag Small galaxies are much less likely than large ones to host supermassive black holes, new Chandra data shows.

flag A new study using NASA’s Chandra X-ray Observatory finds that smaller galaxies are far less likely to host supermassive black holes than larger ones, with only about 30% of dwarf galaxies showing signs of such black holes, compared to over 90% in massive galaxies. flag Analyzing over 1,600 galaxies, researchers attribute the lack of X-ray emissions in small galaxies to either faint black holes or a true scarcity of central black holes, supporting the idea that supermassive black holes form primarily in massive galaxies through direct collapse of gas clouds rather than growing from smaller remnants. flag The findings suggest black hole formation is strongly tied to galaxy mass and may have been rare in the early universe.

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