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Astronomers detect ancient lonely quasars with murky origins: « The quasars appear to have few cosmic neighbors, raising questions about how they first emerged more than 13 billion years ago. »

Astronomers observed ancient quasars that appear to be surprisingly alone in the early universe. The findings challenge physicists’ understanding of how such luminous objects could have formed so early on in the universe, without a significant source of surrounding matter to fuel their growth.

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