A Journey into a Galaxy Collision

Please consider supporting Deep Astronomy on Patreon: https://patreon.com/DeepAstronomy The cosmos above us is full of galaxies. There are an estimated two trillion galaxies within the observable universe, and while astronomers used to think of the

72.3k Views | Published on 31st May, 2014

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The cosmos above us is full of galaxies. There are an estimated two trillion galaxies within the observable universe, and while astronomers used to think of the cosmos as static and unchanging, we now know it is a vibrant place, full of galaxy collisions. Here is the story of how they happen.

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