AM 0644-741

AM 0644-741 is a ring galaxy located about 300 million light years away towards the constellation Volans. It is larger than our Milky Way at 150,000 light years across, and was once a normal spiral galaxy.

AM 0644-741 collided with another galaxy, disrupting its structure. Ring galaxies result from a particular type of collision where the intruding galaxy rams through the disk of the other. The gravitational forces push stars and gas in the galaxy, like pond ripples. This compresses gas clouds, triggering new star formation.

Image from NASA, information from HubbleSite.

This is all xxbillieshears‘ fault. 

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