Friday, 20 May 2011
The never-before-seen structure extends 25,000 light years from each side of our galaxy and contains the energy equivalent of 100,000 supernovae. The bubbles span more than half of the visible sky, from the constellation Virgo to the constellation Grus, and the scientists speculate that it may be have been around for millions of years.
The video documentary below demonstrates how the scientists basically air brushed out the massive clouds of dust particles and fog of gamma rays that appears throughout the sky and offers a few possible explanations of its mysterious occurrence.
In case you want some earth based perspective of our sun's orbit around the center of the galaxy and our relationship to these ginormous bubbles and go here.