Source: "The Dark Side Of The Sun," by Terry Pratchett. But not impossible.Įarth's final resting place: a singularity of almost zero size, which will then proceed to happily orbit the Sun as normal. Then you just need to wait, while it sits and consumes matter until the whole Earth is gone. Eventually it will come to rest at the core, having absorbed enough matter to slow it down. The black hole will plummet through the ground, eating its way to the center of the Earth and all the way through to the other side: then, it'll oscillate back, over and over like a matter-absorbing pendulum. Black holes are of such high density that they pass through ordinary matter like a stone through the air. Method: simply place your black hole on the surface of the Earth and wait. This is left as an exercise to the reader.
Creating a microscopic black hole is tricky, since one needs a reasonable amount of neutronium, but may possibly be achievable by jamming large numbers of atomic nuclei together until they stick. Therefore you microscopic black hole must have greater than a certain threshold mass, roughly equal to the mass of Mount Everest. For your average black hole this takes an unimaginable amount of time, but for really small ones it could happen almost instantaneously, as evaporation time is dependent on mass. Note that black holes are not eternal, they evaporate due to Hawking radiation. (Image credit: Chandra X-Ray Observatory, NASA) This artist's conception of Cygnus X-1 shows the black hole drawing material from companion star (right) into a hot, swirling disk.
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