Spiral galaxies NGC 2207 and IC 2163 will slowly pull each other apart until billions of years from now there will only be one left. These galaxies will create tides of matter, sheets of shocked gas, lanes of dark dust, bursts of star formation, and streams of castaway stars. Astronomers think that the larger galaxy, NGC 2207 (on the left), will "swallow" the galaxy on the right. The space between stars is so vast that usually the stars will not collide when the galaxies do. I had no idea that galaxies collided like this. I find the image and description intruiging.
http://apod.nasa.gov/apod/ap140119.html
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