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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.

1,482 topics in this forum

  1. 1-860-222-9007 To change the date of your SOUTHWEST flight booking, you typically have a few options:

    By jamyah,
    • 0 replies
    • 10 views

  2. What is needed to creat Proton? 1 2

    By Dandav,
    • 31 replies
    • 1.9k views

  3. Origin of asteroids

    By Moontanman,
    • 8 replies
    • 398 views

  4. Solar Eclipse 2024: Pictures from Vmedvil in the Totality Zone

    By Vmedvil,
    • 1 reply
    • 91 views

  5. Are Humans the First Technologically Advanced Species in the Universe? 1 2 3 4

    By Vmedvil,
    • 65 replies
    • 873 views

  6. An Analysis Of The Big Bang

    By ClaudeGaiven,
    • 9 replies
    • 2.6k views

  7. Let's take two objects A and B at a different distance of about 29 million light years and are moving away at the rate of expansion similar to that of universe and a ray of light emitted by A toward B and the initial date of their positioning would reach

    By billywilliams,   
    • 3 replies
    • 256 views

  8. Top 5 Time Travel Movies : All Science Fiction Lovers Should Watch

    By sunglasses25,
    • 5 replies
    • 669 views

  9. The mechanism of comet formation

    By Fermer1959,
    • 0 replies
    • 125 views

  10. What if Humans Stored Nuclear Waste On Other Planets?

    By Vmedvil,
    • 5 replies
    • 575 views

  11. Nuclear Saltwater Rocket

    By Moontanman,
    • 2 replies
    • 191 views

  12. Momentum of systems

    By DimSon,
    • 2 replies
    • 672 views

  13. Humanoid Aliens? 1 2

    By Moontanman,
    • 18 replies
    • 1.1k views

  14. A Realistic Planet with 3 Moons

    By jmhuff,   
    • 1 reply
    • 255 views

  15. Planetary Defense: Shielding Earth from Asteroids

    By PanopticPerceptions,   
    • 1 reply
    • 293 views

  16. At What Altitude Can Stars Be Seen In Daylight? 1 2

    By spartan45,
    • 22 replies
    • 11.9k views

  17. I just seen a star disappear? 1 2 3 4 5

    By geko,
    • 70 replies
    • 99.9k views

  18. Time dilation and Hawkins radiation.

    By Jomazing,   
    • 15 replies
    • 1k views

  19. Entire Galaxy Destroying Kardashev Scale 4 Weapon

    By Vmedvil,
    • 4 replies
    • 699 views

  20. Hycean Planets

    By Moontanman,
    • 2 replies
    • 472 views

  21. We are not alone. aliens are among us

    By atomsmasher,
    • 10 replies
    • 897 views

  22. The things that have been told to me

    By bitdaddy,
    • 2 replies
    • 437 views

  23. Black Hole Warheads for Defense of Earth Against Hostile UFOs/UAPs

    By Vmedvil,
    • 2 replies
    • 631 views

  24. The carbon coated coin (Eden Shorthouse)

    By Edenjs,
    • 0 replies
    • 454 views

  25. Mars and the dim sun paradox

    By Moontanman,
    • 2 replies
    • 495 views
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