Largest age map of the Milky Way reveals how our galaxy grew up

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Proud parents chart the growth of their children, but astronomers from the Sloan Digital Sky Survey (SDSS) have taken on a bigger task: charting the growth of our own Milky Way.

from Astronomy News – Space News, Exploration News, Earth Science News, Earth Science http://ift.tt/1JCUQ6T
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I'm presently a student of life who is trying to figure out the mysteries of the universe. Any hints anybody?

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