The second most powerful cosmic ray ever discovered may have come from a galaxy

[Redaktion]

According to a recent study, a galaxy could be the source of the second most powerful cosmic ray ever discovered. But other hypotheses are put forward, and it will be necessary to wait for new observations to discover its origin.

https://www.notebookcheck.net/The-second-most-powerful-cosmic-ray-ever-discovered-may-have-come-from-a-galaxy.1234288.0.html