Those aren't stars – they're black holes
An international team of astronomers just released a remarkable map of the night sky without a single star, but which is instead filled with 25,000 supermassive black holes. We know what you're thinking. How is that possible if black holes don't radiate light, you silly gooses? That's only half right though. The black hole itself is more or less invisible, but if it's munching on a star or some other object, the tidal forces of its gravity will tear it apart and create a flattened accretion disk around it.
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