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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.

1,487 topics in this forum

  1. Early Galaxy Evolution (High-z Metallicity) 1 2 3

    By coldcreation,
    • 34 replies
    • 6.1k views

  2. Upcoming book about the 1986 Challenger disaster

    By CraigD,
    • 3 replies
    • 2k views

  3. Dark matter causes moon receding and earth’s rotation slowing?

    By peter,
    • 5 replies
    • 2.7k views

  4. Moments and events 1 2 3 4 7

    By InfiniteNow,
    • 117 replies
    • 15.5k views

  5. Sun's Origin and make up.

    By Pluto,
    • 12 replies
    • 3k views

  6. Hazzards of vacuum

    By Roadam,
    • 2 replies
    • 1.7k views

  7. Help e.t. out, let him find us

    By vasquez,
    • 8 replies
    • 1.5k views

  8. NASA to delay Mars launch by two years

    By Michaelangelica,
    • 0 replies
    • 1.1k views

  9. The Universe Was Not Caused 1 2

    By jedaisoul,
    • 17 replies
    • 2.2k views

  10. Gravity

    By vasquez,
    • 3 replies
    • 1.1k views

  11. Theories on gamma ray bursts?

    By sanctus,
    • 14 replies
    • 3.1k views

  12. Material Creation 1 2 3 4 7

    By coldcreation,
    • 110 replies
    • 15.5k views

  13. Jupiters bands

    By paigetheoracle,
    • 1 reply
    • 945 views

  14. Evidence of a higher intelligence

    By Merlin,
    • 2 replies
    • 1k views

  15. Universe Expansion, Exotic vs. Dark Matter?

    By pianoman1976,
    • 14 replies
    • 3.7k views

  16. Space-Based Solar Power Interim Assessment (Release 0.1) is Published!

    By cfrjlr,
    • 4 replies
    • 1.4k views

  17. Lunar Exploration History

    By TheBigDog,
    • 5 replies
    • 1.9k views

  18. Light and energy

    By astrocuriousstudent,
    • 0 replies
    • 997 views

  19. Going to Alpha Centauri

    By alpha_centauri,
    • 1 reply
    • 1.6k views

  20. A new theory on origin of the universe

    By NLN,
    • 4 replies
    • 2.3k views

  21. Soft landing on the moon discussion 1 2

    By Roadam,
    • 27 replies
    • 10.1k views

  22. If Moon is departing, what will happen to Earth?

    By Jet2,
    • 7 replies
    • 1.6k views

  23. Info on Hubble Solar array problems?

    By rkruz,
    • 0 replies
    • 1.1k views

  24. Team Solid-state 1 2

    By GAHD,
    • 21 replies
    • 5.3k views

  25. Should the moon have a name? 1 2 3 4 5

    By C1ay,
    • 80 replies
    • 11.3k views
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