This story is modified from one originally published by AAS Nova. Where do the highest-energy particles in the universe come from? New research led by WIPAC researchers suggests that the sources of ultra-high-energy cosmic rays aren’t necessarily the sources of ultra-high-energy photons as well. Cosmic Rays Across the Universe Across the universe, extremely energetic charged particles called cosmic [...]
Read the full article at: https://wipac.wisc.edu/seeking-the-sources-of-ultra-high-energy-cosmic-rays/