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Ring Around the Galaxy

Credit: Credit: ESA/Hubble & NASA; Acknowledgement: Flickr user Det58
Wednesday, Jan. 28, 2015: Galaxy Arp 230 (IC 51) possesses an irregular shape perhaps caused by a collision with another galaxy in the past, which also…Read More »

created the galaxy’s polar ring. The outer ring of the galaxy contains gas and stars, rotating over the poles of the galaxy. Possibly the orbit of the smaller galaxy that created Arp 230 lay perpendicular to the disc of the larger galaxy when they collided, and the smaller galaxy ripped apart, forming the polar ring structure. Image released Jan. 26, 2015.

— Tom Chao   Less «
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