Are Microscopic Black Holes Buzzing Inside the Earth?
June 20th, 2007

There's a book by Larry Niven called "Hole Man", where a group of explorers on Mars come across an alien communications device. One of the scientists thinks there's a microscopic black hole inside, which powers the device, and to prove it, he turns off the containment field. The black hole falls into Mars, consuming the planet from within, and threatening the entire solar system.

Just science fiction? Maybe not. According to B.E. Zhilyaev, a researcher at the Main Astronomical Observatory in Ukraine, in the research paper Singular Sources of Energy in Stars and Planets, the Universe could be buzzing with these microscopic black holes. They might even be inside stars and planets.

This isn't a new concept. Physicists have been theorizing about the possibility of microscopic, primordial black holes for years, and used them to explain everything from dark matter to gamma ray bursts.

It takes a star several times the mass of our Sun to form a black hole naturally when it dies, so there probably isn't a process that can make them any more. But during the first few moments after the Big Bang, the entire Universe was compressed into a microscopic singularity. These primordial black holes could have been generated right at the beginning, and have been with us ever since.

It's also theorized that the new Large Hadron Collider might be capable of creating microscopic black holes through the collision of particles at relativistic velocities.

Before you can wrap your head around this research, consider how big a black hole has to be. For a stellar mass black hole, the event horizon - the point at which nothing can escape - is only a few kilometres from its centre. A black hole with the mass of the Earth? It would be less than 2 cm across. A black hole with the mass of a mountain? Smaller than a hydrogen atom.

Source and full article here.

I found this to be really interesting? Is it plausible?

i believe by now most if not all primordial black holes should have evaporated.

Small balack holes tend to evaporate faster than the bigger ones, if you were to have a 2 cm it would fall apart in less than a second because of it's small size. Big black holes are falling apart constantly but due to it's enormous size it takes a long time for it to dissapear into nothing. But a 2 cm black hole or one the size of a hidrogen atom would dissapear in less than a second so no, a black hole this size can not exist. Even a black hole the size of Europe would dissapear in less then 5 seconds. A black hole must be big for it to be able to withstand the evaporation( or whatever you want to call it) long enough for it to exist.