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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.

1,481 topics in this forum

  1. What Speed Of Gravity Is Used In Space Probe Trajectory Calculations.

    By spartan45,
    • 0 replies
    • 2.5k views

  2. Cannabilizing?

    By hazelm,
    • 13 replies
    • 2.5k views

  3. Coronal Streamers' Light

    By hazelm,
    • 2 replies
    • 1.8k views

  4. Find Exoplanets With A Videogame

    By alfa015,   
    • 1 reply
    • 1.5k views

  5. Superintelligent Extraterrestrial Life, Accelerated Evolution, And The Fate Of The Universe 1 2 3 4 12

    By Super Polymath,
    • 197 replies
    • 37.2k views

  6. Atto, Femto, Pico, Nano Seconds - Significant On Cosmic Scale

    By petrushkagoogol,
    • 2 replies
    • 1.7k views

  7. Warped Gravitational Lensing Of The Zodiac

    By petrushkagoogol,
    • 2 replies
    • 1.6k views

  8. Easiest Way You Can Find Exoplanets From Home

    By alfa015,   
    • 4 replies
    • 2.1k views

  9. My Space Story (Stachey & Droids)

    By DroidologyAoD,
    • 1 reply
    • 1.2k views

  10. Lunar Recession

    By granpa,
    • 1 reply
    • 1.7k views

  11. Anyone Know If John Glenn’S Fireflies Are Still Seen By Astronauts?

    By spartan45,
    • 1 reply
    • 2.9k views

  12. Are Photons Noisy? 1 2 3

    By hazelm,
    • 42 replies
    • 5.9k views

  13. Looking Down At Different Times

    By Xylotile,
    • 1 reply
    • 1.8k views

  14. Aging When Travelling 1 2 3

    By terryble,   
    • 36 replies
    • 6.8k views

  15. 992 Ce Lightshow

    By mrg,
    • 2 replies
    • 1.7k views

  16. Dark Matter And Universal Mitosis

    By petrushkagoogol,
    • 1 reply
    • 1.4k views

  17. Spacetime, Or Spacedepth

    By MrK,
    • 0 replies
    • 1.5k views

  18. How To Find Exoplanets From Home

    By alfa015,   
    • 5 replies
    • 2.7k views

  19. Ideas Concerning Space Travel At High Speed. 1 2 3 4 5

    By Darky,
    • 77 replies
    • 9.3k views

  20. Proof That Nasa Is Possible. 1 2

    By quickquestion,   
    • 24 replies
    • 4.7k views

  21. What Is A Sun? 1 2 3

    By ClaudeGaiven,
    • 38 replies
    • 6k views

  22. Omg Proton Beam Powered Propulsion?

    By Super Polymath,
    • 3 replies
    • 1.3k views

  23. Ring Around Jupiter

    By RandalThor66,   
    • 14 replies
    • 4k views

  24. Fermi Paradox

    By Darky,   
    • 2 replies
    • 1.1k views

  25. Shooting Stars - Meteor

    By Abdelmoghit,   
    • 1 reply
    • 1.6k views
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