**Gamma Rays** Missing in Supernova Explosion: Shocking Discovery Challenges Cosmic Ray Theories
Montpellier, France – Scientists were surprised by the unexpected findings discovered during observations of the supernova SN 2023ixf in 2023. The event, located in the Pinwheel galaxy (Messier 101) about 22 million light-years away, provided a unique opportunity to study cosmic ray production. However, NASA’s Fermi Gamma-ray Space Telescope did not detect the high-energy gamma rays that were anticipated to be produced by these particles. Previous estimates suggested that about 10% of a supernova’s total …