'We do not understand how it can exist': Astronomers baffled

Astronomers have discovered a super diffuse dwarf galaxy, named Nube, which gives off barely any visible light and seemingly defies explanation.

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West Virginia , United States , Spain , La Palma , Murcia , Spanish , Gran Telescopio Canarias , Ignacio Trujillo , Mireia Montes , Institute Of Astrophysics The Canary , Digital Sky , Green Bank Telescope , Canary Islands , Sky Survey ,