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Astronomy and Space

Space, Human spaceflight, space probes and the exploration of our Solar System. No personal theories or speculation please.


1,485 topics in this forum

    • 112 replies
    • 15.9k views
  1. Gravity

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  2. Before the Universe 1 2

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  3. Black Holes

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  4. Save hubble

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  5. Accelerating Universe 1 2

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  6. Speed of Light barrier 1 2 3 4

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  7. Infinite 1 2

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  8. Cmb

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  9. Space Ends 1 2

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