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Astronomy and Cosmology

Topics related to observation of space and any related phenomena.


3680 topics in this forum

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  1. Rippling Crab Nebula

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  2. Time

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  3. The Big Freeze?

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  4. Multi-verse

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  5. a flat universe? 1 2 3

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  6. Hubble volume

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  7. Dark Energy/Matter

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