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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.

1,485 topics in this forum

  1. Missing pulsar problem (MPP)

    By Dandav,
    • 15 replies
    • 1.3k views

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

    By geko,
    • 74 replies
    • 105.9k views

  3. How to catch a glimpse of a new star about to appear in the night sky:

    By oldpaddoboy,
    • 10 replies
    • 3.7k views

  4. Webb detects most distant black hole merger to date

    By oldpaddoboy,
    • 1 reply
    • 645 views

  5. The JWST and Supernova 1987A

    By oldpaddoboy,
    • 10 replies
    • 945 views

  6. Primordial Black Hole Capture by Neutron Stars:

    By oldpaddoboy,
    • 0 replies
    • 481 views

  7. Origin of asteroids

    By Moontanman,
    • 8 replies
    • 1.1k views

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

    By Vmedvil,
    • 1 reply
    • 666 views

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

    By Vmedvil,
    • 65 replies
    • 7.8k views

  10. An Analysis Of The Big Bang

    By ClaudeGaiven,
    • 9 replies
    • 3.2k views

  11. 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
    • 877 views

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

    By sunglasses25,
    • 5 replies
    • 1.4k views

  13. The mechanism of comet formation

    By Fermer1959,
    • 0 replies
    • 606 views

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

    By Vmedvil,
    • 5 replies
    • 1.3k views

  15. Nuclear Saltwater Rocket

    By Moontanman,
    • 2 replies
    • 732 views

  16. Momentum of systems

    By DimSon,
    • 2 replies
    • 1.3k views

  17. Humanoid Aliens? 1 2

    By Moontanman,
    • 18 replies
    • 2.9k views

  18. A Realistic Planet with 3 Moons

    By jmhuff,   
    • 1 reply
    • 729 views
    • Halc
    • Halc

  19. Planetary Defense: Shielding Earth from Asteroids

    By PanopticPerceptions,   
    • 1 reply
    • 768 views

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

    By spartan45,
    • 22 replies
    • 15.2k views

  21. Time dilation and Hawkins radiation.

    By Jomazing,   
    • 15 replies
    • 1.7k views

  22. Entire Galaxy Destroying Kardashev Scale 4 Weapon

    By Vmedvil,
    • 4 replies
    • 1.3k views

  23. Hycean Planets

    By Moontanman,
    • 2 replies
    • 1.2k views

  24. We are not alone. aliens are among us

    By atomsmasher,
    • 10 replies
    • 1.6k views

  25. The things that have been told to me

    By bitdaddy,
    • 2 replies
    • 851 views
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