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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.


1,435 topics in this forum

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  1. Redshift z 1 2 3 4 46

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  2. Aliens Poll 1 2 3 4 23

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  3. Near Earth Objects 1 2 3 4 14

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  4. Hypography X Prize Entry 1 2 3 4 14

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  5. Skywatchers' Journal 1 2 3 4 14

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  6. What IS space? 1 2 3 4 13

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  7. Spaceship Design 1 2 3 4 11

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  8. Big Bang Blasted 1 2 3 4 11

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  9. UFO! 1 2 3 4 10

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  10. Speed of gravity 1 2 3 4 9

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  11. The edge of space 1 2 3 4 9

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  12. Are we alone? 1 2 3 4 8

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