23 April, 2002, BBC News, Cosmic ray mystery 'solved' Citat: "...Cosmic rays are bits of matter: protons, electrons, and atomic nuclei which have been stripped of their electrons. Although supernovae, gigantic exploding stars, have long been suspected as the source of most rays, the origin of the highest-energy rays has been more difficult to tie down..."For the first time, we see the hint of a possible connection between the arrival directions of ultra-high energy cosmic rays and locations on the sky of nearby dormant galaxies hosting supermassive black holes," said Princeton's Dr Diego Torres..."
macalester.edu: An Introduction to Cosmic RaysArkiveret 19. marts 2005 hos Wayback Machine Citat: "...They are then picked up by the solar wind and carried back to the outer heliosphere. Lastly, they are somehow accelerated, e.g. by the solar wind termination shock, and drift into the inner heliosphere as cosmic rays..."
macalester.edu: An Introduction to Cosmic RaysArkiveret 19. marts 2005 hos Wayback Machine Citat: "...They are then picked up by the solar wind and carried back to the outer heliosphere. Lastly, they are somehow accelerated, e.g. by the solar wind termination shock, and drift into the inner heliosphere as cosmic rays..."