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Science & Spaceflight

A place for all geeky and sciency discussions.

8,478 topics in this forum

  1. Map of the Universe*

    By JoeSchmuckatelli,
    • 3 replies
    • 620 views

  2. Why Have I Not Seen Any Blue Rocket Plume Solid Boosters?

    By Spacescifi,
    • 4 replies
    • 448 views

  3. What Is A Likely Propellant/Fuel To Ship Ratio For An SSTO?

    By Spacescifi,
    • 20 replies
    • 1.9k views

  4. Is there a physicist in the house? 1 2

    By boriz,
    • 27 replies
    • 1.6k views

  5. Fossile Fuel Endgame... If We Run Out Is It Really So Bad? 1 2 3

    By Spacescifi,
    • 65 replies
    • 3.3k views

  6. Could the SuperHeavy booster be SSTO? 1 2 3 4 7

    By Exoscientist,   
    • 156 replies
    • 10.6k views

  7. That piece of Challenger

    By Maria Sirona,
    • 2 replies
    • 423 views

  8. Launches without a thread (even suborbital) 1 2

    By tater,
    • 41 replies
    • 3.6k views

  9. Molten Metal as Liquid Rocket Fuel.... Has Anyone Tried It And Possible Uses

    By Spacescifi,
    • 23 replies
    • 2.3k views

  10. The Finances of Space 1 2

    By JoeSchmuckatelli,
    • 33 replies
    • 1.9k views

  11. Rocket-Ships... Literally Lol...

    By Spacescifi,
    • 20 replies
    • 875 views

  12. Mengtian Long March 5B Core Stage Reentry Update and Discussion Thread 1 2

    By SunlitZelkova,
    • 29 replies
    • 1.6k views

  13. ESA needs to save NASA’s Moon plans. 1 2 3 4 6

    By Exoscientist,   
    • 139 replies
    • 7.6k views

  14. Is it feasible to send teenagers into space or even space station? 1 2

    By steve9728,
    • 30 replies
    • 1.3k views

  15. Faster Rotation And It's Effect On Civilization..

    By Spacescifi,
    • 12 replies
    • 1k views

  16. Is a full-flow staged Hydrolox engine possible?

    By Pthigrivi,
    • 9 replies
    • 1.6k views

  17. ISRU On A Spaceship For Propellant Is For Beginner Space Civilizations

    By Spacescifi,
    • 19 replies
    • 942 views

  18. The advantages of launching straight up

    By farmerben,
    • 15 replies
    • 1.5k views

  19. A very Kerbal RC plane with an aerial Battle Royale

    By Klapaucius,
    • 1 reply
    • 354 views

  20. Eastern European solar eclipse

    By Aerodynamic Kerbal,
    • 2 replies
    • 379 views

  21. Hypervelocity Tether Rockets

    By MatterBeam,
    • 12 replies
    • 2.5k views

  22. [New] Spaceplane Discussion Thread 1 2 3

    By Rutabaga22,
    • 50 replies
    • 2.8k views

  23. Real orbital flights of the 60's: pilot or computer??

    By RealDarko,
    • 18 replies
    • 924 views

  24. Enrichment of CO2 in greenhouses

    By farmerben,
    • 3 replies
    • 569 views

  25. F35 nickname brainstorm 1 2

    By Hyperspace Industries,
    • 42 replies
    • 2.9k views
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