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Photo credit: NASA

This stellar swarm is Messier 80 (NGC 6093), one of the densest of the 147 known globular star clusters in the Milky Way galaxy, located about 28,000 light-years from Earth. Every star visible in this image is either more highly evolved than, or in a few rare cases more massive than, our own Sun. Especially obvious are the bright red giants, which are stars similar to the Sun in mass that are nearing the ends of their lives.

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