DAVID A. HARDY, FUTURES: 50 YEARS IN SPACE / SCIENCE PHOTO LIBRARY DAVID A. HARDY, FUTURES: 50 YEARS IN SPACE / SCIENCE PHOTO LIBRARY
Omega Centauri globular star cluster. Artwork of the globular cluster Omega Centauri seen above the buildings of an alien city. The planet on which this city is built is around 300 light years from the cluster. Globular clusters exist in a halo around the galaxy, and they have been seen in haloes around other galaxies also. They contain hundreds of thousands of densely packed, old stars.
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