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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.


1,484 topics in this forum

    • 26 replies
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  1. Wormholes

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  2. The vacuum of space

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  3. Accretion Disks

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  4. What types of Stars?

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  5. Definiton of a Universe 1 2

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  6. How Many?

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  7. Asteriod question. 1 2

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  8. Space on the cheap 1 2

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  9. Unknown nebula

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  10. What If?

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  11. Space Elevator

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  12. Star gazers

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