What would happen if a coin-sized black hole appeared on Earth?

In general, it would take five billion years for such a black hole to swallow the Earth. It could significantly increase the mass of the Earth.

And, of course, it would immediately create a total mess on the planet, turning it into an uninhabited space scrap of collapsing crust, lava, hot gases, and everything else in just a few hours. 🔥
#interesting #terrifying