Primordial black holes and asteroid danger

TL;DR

This paper investigates the potential threat of primordial black holes invading the Kuiper belt, altering asteroid trajectories, and causing possible local or global disasters on Earth, with estimates of event frequency.

Contribution

It provides the first detailed calculation of the probability and impact of primordial black holes on the solar system and Earth, highlighting a previously underexplored danger.

Findings

Primordial black holes can significantly alter asteroid orbits.

Such events could cause local or global disasters.

Estimated frequency of these events is provided.

Abstract

Probability for a primordial black hole to invade the Kuiper belt was calculated. We showed that primordial black holes of certain masses can significantly change asteroids' orbits. These events may result in disasters, local for our solar system and global for the Earth (like the Tunguska meteorite). We also estimated how often such events occur.