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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.

1,477 topics in this forum

  1. What If The Meteor That Killed The Dinosaurs Shattered Before Impact? 1 2

    By andytak3740,   
    • 21 replies
    • 4.6k views

  2. From Where Comes This Energy? 1 2

    By hazelm,
    • 23 replies
    • 2.6k views

  3. Activities Of Bennu - And ...

    By hazelm,
    • 3 replies
    • 1.1k views

  4. 4.22 Ly Stars

    By alright1234,
    • 2 replies
    • 1.2k views

  5. Surprises From Venus And Mercury --

    By hazelm,
    • 10 replies
    • 1.6k views

  6. Antimatter Capture From Blackhole

    By Vmedvil2,
    • 6 replies
    • 3.8k views

  7. A River Of Stars

    By hazelm,
    • 4 replies
    • 1.2k views

  8. The Cosmic Conundrum

    By hazelm,
    • 2 replies
    • 1.3k views

  9. Tidal Tales

    By hazelm,
    • 0 replies
    • 1k views

  10. Why Isn't Concrete Used On Space Stations Or Space Craft 1 2

    By andytak3740,   
    • 21 replies
    • 2.8k views

  11. Is It Feasible To Create A Tower That Reaches Space?

    By andytak3740,   
    • 3 replies
    • 1.4k views

  12. Do You Think Tau Ceti E Is Inhabited?

    By alfa015,
    • 1 reply
    • 1.1k views

  13. Exciting Magnetic Alfenic Waves

    By hazelm,
    • 0 replies
    • 1.1k views

  14. Supermassive Supergiants Collapsed?

    By hazelm,
    • 4 replies
    • 1.1k views

  15. Stupid Cbr Question

    By Flummoxed,
    • 10 replies
    • 1.3k views

  16. Crystallized White Dwarfs

    By hazelm,
    • 12 replies
    • 1.3k views

  17. Uranium On The Moon?

    By Vmedvil2,
    • 4 replies
    • 1.3k views

  18. Our Expanding Universe And Its Bubble 1 2

    By hazelm,
    • 18 replies
    • 2.5k views

  19. Cold On The Space Station!

    By hazelm,
    • 4 replies
    • 1.2k views

  20. Fossil From The Big Bang

    By hazelm,
    • 2 replies
    • 1.3k views

  21. Chinese Scholar, Jian Liang Yang, Has Brought Order Out Of Chaos In Astrophysical Field 1 2 3

    By xps13579,
    • 36 replies
    • 3.7k views

  22. A Planet Inflated With Helium

    By hazelm,
    • 0 replies
    • 1.1k views

  23. Does Color Filter Change The Frequency Of Light?

    By vibhorsethi,   
    • 6 replies
    • 2.2k views

  24. Black Hole Fountains

    By hazelm,
    • 0 replies
    • 1.1k views

  25. Higgs Field ? Quantum Entanglement?

    By Flummoxed,
    • 1 reply
    • 1.6k views
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