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Wouldn’t a black hole that small evaporate due to Hawking radiation?

• Dylan16807 6y ago
  No. At even 1% of Earth's mass, a black hole's already down to 2 Kelvin of output, across a surface as big as a grain of very fine sand. It would take more than 10^44 years to evaporate on its own, but since the cosmic microwave background is 2.7K it would actually grow over time. For some other data points, a thousand ton black hole would explode in 84 seconds. A million ton black hole would last 2600 years as an unimaginably hot point five hundred times smaller than a proton. A billion ton black hole would last 2.6 trillion years as an unimaginably hot point twice as big as a proton.