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Galaxies through Space and Time
Galaxies through Space and Time2ContentsINTRODUCTION 4About the Hubble Space Telescope 5Our Understanding of Galaxies : A Timeline 7CHAPTER 1: Our Galactic Neighborhood 10Seeking the Source of Falling Gas.
This deep Hubble image captures many of the hundreds of galaxies that belong to the massive galaxy cluster Abell 2744, located 3.5 billion light- years from Earth. In the background are small, faint galaxies that lie even farther in the distance, some more than 12 billion light-years away.
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