A pleasant, easy-to-read summary
..of our present understanding of dark matter. Well written, simple language that can be read in the queue while waiting to give your coffee order!
#outerspace
..of our present understanding of dark matter. Well written, simple language that can be read in the queue while waiting to give your coffee order!
#outerspace
» see original post https://plus.google.com/116000959328274308893/posts/QiHcn8fQPWr
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