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Article: Milky Way's "dark matter" mystery solved by astrophysicists.
- Article from:
- Asian News International
- Article date:
- July 9, 2009
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Byline: ANI
Washington, July 9 (ANI): A team of astrophysicists has solved a mystery that led some scientists to speculate that the distribution of certain gamma rays in our Milky Way galaxy was evidence of a form of undetectable "dark matter" believed to make up much of the mass of the universe.
In two separate scientific papers, the astrophysicists show that this distribution of gamma rays can be explained by the way "antimatter positrons" from the radioactive decay of elements, created by massive star explosions in the galaxy, propagate through the galaxy.
Thus, the scientists said, the observed distribution of gamma rays is not evidence ...