astrowhat: The Andromeda galaxy, M31, is moving towards the Milky Way at a speed of 250,000 miles per hour and is predicted to collide, and eventually merge with our own galaxy in 4 billion years. The series of images above illustrates this merging

astrowhat: The Andromeda galaxy, M31, is moving towards the Milky Way at a speed of 250,000 miles per hour and is predicted to collide, and eventually merge with our own galaxy in 4 billion years. The series of images above illustrates this merging

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from: http://a-nr.tumblr.com/post/129670036893