Comment Re:OK. So .. (Score 1) 90
What is the probability that the Earth would be struck by one during some period of time? What would the observable effects be?
IIRC, tiny black holes would pass right through the earth. They might cause small acoustic effects, and people have looked for these in seismic data, with no definitive results yet.
I seem to recall a professor detailing such an event when I was at university circa 2002.
He didn’t refer to it as a black hole, though.