Dark Matter (IMAGE)

Kavli Institute for the Physics and Mathematics of the Universe

Dark Matter

Caption

Astronomers observed that the dark matter does not seem to clump very much in small galaxies, but their density peaks sharply in bigger systems such as clusters of galaxies. It has been a puzzle why different systems behave differently.

Credit

Kavli IPMU - Kavli IPMU modified this figure based on the image credited by NASA, STScI

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