View Full Version : Cosmic Bullseye: Auriga’s Wheel

2011-Jul-22, 07:40 PM
One of the strangest types of galaxies is those known as ring galaxies. Examples of this include Hoag’s Object (shown above), the Cartwheel Galaxy, and AM 0644-741. These unusual shapes are cause by a galactic collision in which a smaller galaxy plunges nearly straight through the center of a larger galaxy. The gravitational disturbance causes [...]

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