This composite shows the Cassiopeia A supernova remnant across the spectrum: Gamma rays (magenta) from NASA's Fermi Gamma-ray Space Telescope; X-rays (blue, green) from NASA's Chandra X-ray Observatory; visible light (yellow) from the Hubble Space Telescope; infrared (red) from NASA's Spitzer Space Telescope; and radio (orange) from the Very Large Array near Socorro, N.M. Credit: NASA/DOE/Fermi LAT Collaboration, CXC/SAO/JPL-Caltech/Steward/O. Krause et al., and NRAO/AUI.
NASA/DOE/Fermi LAT Collaboration, CXC/SAO/JPL-Caltech/Steward/O. Krause et al., and NRAO/AUI
2010-02-16
NASA's Fermi Closes on Source of Cosmic Rays, url=<a rel="nofollow" class="external free" href="http://www.nasa.gov/mission_pages/GLAST/news/cosmic-rays-source.html">http://www.nasa.gov/mission_pages/GLAST/news/cosmic-rays-source.html</a>