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A packed, roughly spherical cluster of red, white and blue stars shines against the black background of space. The stars are clustered most densely toward the center of the cluster.

Hubble Captures Star-Studded Cluster

This image from NASA's Hubble Space Telescope shows Messier 3, a densely packed cluster of stars whose origins may be a merger between globular clusters in the early universe.

Image Credit: NASA, ESA, and A. Sarajedini (Florida Atlantic University); Processing: Gladys Kober (NASA/Catholic University of America)

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