Peering deep into the heart of our Milky Way galaxy, our Hubble Space Telescope reveals a rich tapestry of more than half a million stars. At the very hub of our galaxy, this star cluster surrounds the Milky Way's central supermassive black hole, which is about 4 million times the mass of our sun. Discover more: http://go.nasa.gov/1Rsw7UN
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Beautiful photo.
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