The unexpected discovery suggests a colossal event in our galaxy's past, releasing energy equivalent to 100,000 exploding stars. But scientists don't yet know what that event might have been.
This NASA illustration depicts the twin bubbles of high-energy gamma rays protruding from the Milky Way, which are believed to be nearly as big as the galaxy itself. (NASA / November 9, 2010)
http://www.latimes.com/news/science/la-sci-1110-energy-bubbles-20101110%2C0%2C5062292.story
No comments:
Post a Comment