cosmic

Ghost galaxy prompts cosmic mystery

Ghost galaxy prompts cosmic mystery

Image copyright NASA/ESA/P. van Dokkum Image caption Hubble image: The galaxy is so faint that other spiral galaxies can been seen through it An unusually transparent galaxy about the size of the Milky Way is prompting new questions for astrophysicists. The object, with the catchy moniker of NGC1052-DF2, appears to contain no dark matter. If…

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