Astronomers Investigate the Source of Cosmic Rays

Astronomers have long attempted to locate the source of high-energy cosmic rays that hit the Earth's atmosphere. Now, researchers say that many of the rays can be traced to areas of the sky that contain nearby active galactic nuclei, thought to be powered by supermassive black holes devouring large amounts of matter.

Guest:

Paul Mantsch, project manager, Pierre Auger Collaboration, Fermi National Accelerator Laboratory, Auger Southern Observatory in Malargue, Argentina

Comments

 

Please keep your community civil. All comments must follow the NPR.org Community rules and terms of use, and will be moderated prior to posting. NPR reserves the right to use the comments we receive, in whole or in part, and to use the commenter's name and location, in any medium. See also the Terms of Use, Privacy Policy and Community FAQ.