Astronomers study the outskirts of elliptical galaxies
http://www.upi.com/Science_News/2017/03/06/Astronomers-study-the-outskirts-of-elliptical-galaxies/1351488819305/?utm_source=sec&utm_campaign=sl&utm_medium=9 Source Cited: www.upi.com Sign in to see full entry.
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