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Let’s Stick Together

Credit: Canada-France-Hawaii Telescope/Coelum
Wednesday, July 1, 2015: Galaxies bound to each other by gravity form galaxy clusters, the largest compact structures in the universe. The Virgo cluster…Read More »





of galaxies lies closest to us, some 50 million light-years away, and contains sub-structures such as this grouping of galaxies gravitating about a massive elliptical galaxy, NGC 4365. Image released June 2015.

— Tom Chao    Less «
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