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What if we turned the moon into a black hole?
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this post was submitted on 23 Jun 2026
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TIL. Didn't consider black holes could be that small.
Technically all objects have an event horizon, the special feature of black holes is just that they are actually smaller than their event horizon
Every object has a Schwarzschild radius, but only if ~~objects are~~ an object is smaller than ~~their~~ its own Schwarzschild radius (black holes) it defines an event horizon, i.e. by all means of physics, we cannot "see" what is going on inside.
They supposedly make microscopic ones all the time in particle colliders, but they dissipate almost immediately.
My understanding is that was the 'fear' if certain parts of string theory were right and had certain parameters, but it didn't happen (ruling those out)
We are not there yet. Some of the theories put the energy requirements within reach of the LHC. They were at the extremes of possibilities however, and none have been detected so far.