Cosmic Rays come from AGNs: Confirmed

A group of scientists from 17 countries, formed by researchers of the Universidad de Granada, has proved that the sources of the most energetic particles ever detected do not come from directions uniformly distributed in the firmament, but they aim at areas in which there are galaxies with active nuclei in the centre from a relatively close distance.

....Cosmic rays are protons and atomic nuclei that ride the Universe practically at the speed of light. We are still ignorant of the acceleration mechanisms of particles at energies 100 million times higher than those obtained in the largest particle accelerator in the world.

...Active Galactic Nuclei (AGN) are some of the most violent objects in the Universe. There have been conjectures about its possible link with the production of high energy particles. Scientists think that most of the galaxies present black holes in the centre, with a mass of between one million and thousand million times the solar mass. The one of the Milky Way, our galaxy, has about 3 million solar masses.

Ultimately this news item is telling us that:

a) Cosmic Rays come from AGNs
b) AGNs are some of the most violent objects in the Universe
c) There's an AGN at the heart of our galaxy
d) We don't understand the mechanism

BTW, our AGN is less active than expected. Either it's just a weakling, or it is waiting for its moment to vent...