Scientists are literally hunting for tiny black holes that might be hiding right here in our own solar system.
arXiv · March 18, 2026 · 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