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Are the telescopes really capturing these colors in deep space or are they just "artist's impression". What could make such vast space "red" or "green"?

deep space photo

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I think this is a good one for Astronomy - in fact, it's likely a duplicate of astronomy.stackexchange.com/questions/393/…. – David Zaslavsky♦ Nov 4 '11 at 22:55

closed as off topic by David Zaslavsky♦ Nov 4 '11 at 22:56

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