http://www.sciencedaily.com/releases/2013/06/130627102625.htm
The observations are correct, but the conventional theory is wrong: this matter does not come from supernovae explosions of previous stars of the galaxy. Rather, this mass comes from the cosmic sector of the universe. It is eventually accreted into existing stars of the galaxy, causing them to increase in mass and move up the Main Sequence.
Study the Reciprocal System and prove it for yourself. https://transpower.wordpress.com
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