And no, I’m not talking the labelling of British motorways, but spiral galaxies … Ah, a candy-coloured thing of beauty … M51 is a spiral galaxy, about 30 million light years away, that is in the process of merging with a smaller galaxy seen to its upper left. [Image credit: X-ray: NASA/CXC/SAO; Optical: Detlef Hartmann;...
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Published on May 29, 2014 08:04