In this pair of gravitationally interacting galaxies called Arp 147, the blue ring-shaped galaxy's distinctive look was probably created when the galaxy on the left passed through the galaxy on the right.
via LiveScience.com http://www.livescience.com/25703-interacting-galaxies-arp-147.html
via LiveScience.com http://www.livescience.com/25703-interacting-galaxies-arp-147.html
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