Astronomers have discovered nearly 300 galaxy clusters and groups, including almost 100 located 8 to 10 billion light-years away, using the space-based Spitzer Space Telescope and the ground-based Mayall 4-meter telescope.
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Details
Title: Galaxies Gather at Great Distances
Creator: NASA/JPL-Caltech/NOAO
Date Created: 2006-06-05
Rights: JPL
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