Arp 194 consists of 2 galaxies that collided within the past 100 million years. A tidal tail of material was pulled between them and started the birth of large, high mass, blue-white stars. The tidal tail is over 100,000 light years across. Eventually it will merge into one galaxy via /r/spaceporn https://ift.tt/3017EOd
via Tumblr https://ift.tt/2XAPBRo
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