Challenge theoretical models, Crab pulsar beams most energetic gamma rays ever detected from a pulsar
Thursday, October 6, 2011 - 13:00
in Astronomy & Space
A thousand years ago, a brilliant beacon of light blazed in the sky, shining brightly enough to be seen even in daytime for almost a month. Native American and Chinese observers recorded the eye-catching event. We now know that they witnessed an exploding star, which left behind a gaseous remnant known as the Crab Nebula.