The globular cluster M15 is high in the southern sky at nightfall. Through binoculars, it looks like a fuzzy star. It’s actually a globe-shaped family of several hundred thousand stars that may contain a black hole at its center.
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The globular cluster M15 is high in the southern sky at nightfall. Through binoculars, it looks like a fuzzy star. It’s actually a globe-shaped family of several hundred thousand stars that may contain a black hole at its center.