The Hulking sky [PIC]

blogs.discovermagazine.com — Gamma rays are the 800 pound gorillas of photons. They are the highest energy form of light. Even the wimpiest gamma ray has about a 500,000 times the energy of a visible light photon, and it takes a pretty seriously scary event to make one. That’s why this new map of the sky is so seriously cool... Mar 24, 2009 View in Crawl 4