The globular cluster Palomar 5 is full of black holes

The globular star cluster Palomar 5, which is about 80,000 light-years away in the constellation Snake, may not look quite as good as some of its other globular celestial colleagues. It is faint, and of the 150 known globular clusters known to astronomers in our galaxy, it is one of the least massive representatives with few stars. The density of its star is barely higher than that of our stellar neighborhood – after all, we are not in a globular mass.

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