These compact red structures, which are only about two percent the size of the Milky Way, puzzle astronomers as they can't determine what they are.
The first hypothesis proposes that they're incredibly dense galaxies packed with up to 100 billion stars, which could make them the densest stellar environments in the universe.
The second hypothesis suggests that the density can be explained by a supermassive black hole at the center of the Little Red Dots, posing questions regarding their scale.
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