Science Where do cosmic rays come from? The answer could be in the Big Dipper.

Researchers discovered a hotspot of high-energy particles that could offer clues about origin of cosmic rays. 

K. Kawata, University of Tokyo Institute for Cosmic Ray Research.

A hotspot of powerful, ultrahigh-energy particles streams toward Earth from beneath the handle of the Big Dipper constellation. This collection of cosmic rays may help scientists nail down the origin point of the powerful particles, a century-old mystery.