The James Webb Space Telescope has discovered a class of small, red objects called 'little red dots' that challenge existing models of the early universe, potentially representing black holes or a new type of object. This discovery could reshape our understanding of galaxy formation and black hole evolution in the early universe, and may point to entirely new astronomical phenomena. The little red dots appear to have existed between 0.6 and 1.6 billion years after the Big Bang and show emission from high-velocity hydrogen gas. Astronomers debate whether they are black holes cocooned in gas, brown dwarfs, or something else entirely.
Background
The James Webb Space Telescope (JWST) observes infrared light, allowing it to see distant, redshifted objects from the early universe. 'Little red dots' are compact red objects visible in JWST images but not to Hubble. Their nature is mysterious, with hypotheses ranging from supermassive black holes to a new class of 'black hole stars' where gas pressure triggers fusion without a star.
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Discussion
Commenters express fascination, with some noting existing research on brown dwarfs as a potential explanation, while others find the idea of matter orbiting a black hole at stellar pressure levels mind-blowing. There is also discussion about the need for updated cosmology resources.