Story thread · 2 reports / 2 sources

Strange gamma-ray signal could unlock dark matter’s secrets

newscientist.com · 2hShare

Researchers spotted an unusual gamma-ray signal in three galaxy clusters, which may be a telltale sign of dark matter – or some even more exotic phenomenon

First report: Cygnus X-3 becomes the highest-energy gamma-ray source known anywhere in space — interestingengineering.com, 2d