Scientists are literally hunting for tiny black holes that might be hiding right here in our own solar system.
March 18, 2026
Original Paper
Geometric Search for Hawking Radiation from Nearby Primordial Black Holes
arXiv · 2603.16508
The Takeaway
If tiny 'primordial' black holes exist, they would produce curved wavefronts of light as they evaporate. Researchers have developed a way to use a network of satellites to spot these curves, allowing them to hunt for invisible black holes as close to us as the Sun.
From the abstract
A nearby primordial-black-hole (PBH) evaporation burst would produce a curved gamma-ray wavefront, leading to detectable departures from plane-wave inter-satellite delays. We introduce a purely geometric method that combines imaging localizations with multi-spacecraft timing to determine the distance of a gamma-ray transient. Applied to \textit{Swift}-localized short GRBs, the current sample shows no significant deviation from the plane-wave expectation, with the most constraining event reaching