NASA image release November 9, 2010
From end to end, the newly discovered gamma-ray bubbles extend 50,000 light-years, or roughly half of the Milky Way’s diameter, as shown in this illustration. Hints of the bubbles’ edges were first observed in X-rays (blue) by ROSAT, a Germany-led mission operating in the 1990s. The gamma rays mapped by Fermi (magenta) extend much farther from the galaxy’s plane.
To learn more go to: https://www.nasa.gov/mission_pages/GLAST/news/new-structure.html
NASA Goddard Space Flight Center enables NASAâ??s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASAâ??s accomplishments by contributing compelling scientific knowledge to advance the Agencyâ??s mission.
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