“So, in some sense, we owe our existence on Earth to long-ago explosions and collision events that formed black holes. Once they come so close that they cannot escape each others gravity, they will merge to become one bigger. In fact, if we’re only considering a collision between a black hole and Earth, the odds are minuscule: about 1-in-40 billion over the history of the Earth, and about 1-in-10 20 (or, written out. The shock waves from stellar explosions may also trigger the formation of new stars and new solar systems. It is possible for two black holes to collide. Mergers between two neutron stars, two black holes, or a neutron star and black hole, similarly spread heavy elements around that may someday become part of new planets.
“These explosions distribute elements such as carbon, nitrogen and oxygen that are necessary for life into space. “Stellar-mass black holes are left behind when a massive star explodes, she explains. Earth and all the other planets of our Solar System would stay. But that’s unlikely to happen and certainly not in your lifetime. This is mainly because of the sheer distance they are from us, with the Milky Way's black hole 26,000 light years away, so there's no danger. Landau does note a strange kinship between these monstrosities and our own planet, however. If the black hole was the same mass as the Sun, then it would have the same gravity as the Sun. If Earth gets within about 800,000 kilometers (3.7 light-seconds) of this black hole, it will get pulled apart. It is incredibly unlikely a black hole will hit Earth. But collisions won’t happen indefinitely because the universe is big and because it’s expanding, and so it’s very unlikely that any sort of black hole runaway effect will occur.” would make it conceivable for micro black holes to be created in the high-energy collisions that occur when cosmic rays hit the Earth's.
much, much smaller than a black hole from a collapsed star) originating from the beginning of the Universe, it is going to be tiny. Assuming we have more likelihood of hitting a micro-black hole (i.e.
She continues: “Future galaxy collisions will cause black holes to grow in size, for example by the merging of two black holes. The two main sources of energy will be from the PBH actually hitting Earth material (kinetic) and from black hole radiation.
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