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Space
Space
Science
Robert Lea

Hubble telescope discovers rare galaxy that is 99% dark matter

CDG-2 an extremely dark matter-dominated galaxy in its host galaxy cluster.

All galaxies are dominated by dark matter, an invisible "stuff" that outweighs all of the matter comprising stars, planets, and moons by around five to one. But in some galaxies, dark matter takes this domination to the extreme. Using the Hubble Space Telescope along with the Euclid Space Telescope, astronomers have discovered what seems to be one of the most heavily dark-matter-dominated galaxies ever seen.

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