Tallbloke's Talkshop: Ghost galaxy prompts cosmic mystery

Does the exception prove the rule, or is the rule on shaky ground? Nobody knows. Scientists have imaged a “transparent” galaxy that may have no dark matter, reports BBC Science. 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,

2018-03-28 18:47


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