Supergirl Comic Box Commentary: Review: Superman #39

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Supergirl Comic Box Commentary: Review: Superman #39

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Supergirl Comic Box Commentary: Review: Superman #39

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Supergirl Comic Box Commentary: Review: Supergirl #39

I'm pretty new to comics so I'm starting off with The New 52 versions. Im confused if Action Comics' Superman is in the same universe as Justice League Origins. Do they share