This was
your sky.

At the Core of M15

M15 is one of the oldest known globular clusters, a dense ball of hundreds of thousands of stars. It lies about 33,600 light-years away in the constellation Pegasus. Observations suggest a supermassive black hole sits at its core, a rarity for globular clusters. This image peers into that incredibly crowded central region, where stars are packed together more tightly than anywhere else.