Science & Spaceflight

8,478 topics in this forum

1. if A Humanoid Was Powered By Nuclear Reactions

   By Spacescifi, February 27, 2022
   • 12 replies
   • 1.1k views
   • 
   • Beamer
   • March 5, 2022

2. Plasma Railguns.... Any Good Use?

   By Spacescifi, March 1, 2022
   • 13 replies
   • 3k views
   • 
   • Spacescifi
   • March 5, 2022

3. What if chernobyl were to explode?

   By Arugela, February 26, 2022
   • 20 replies
   • 1.7k views
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   • Starhawk
   • March 4, 2022

4. IPCC 6th report

   By mikegarrison, August 9, 2021
   • 22 replies
   • 1.6k views
   • 
   • mikegarrison
   • March 2, 2022

5. Scifi Economies and Money

   By Spacescifi, February 26, 2022
   • 15 replies
   • 1.1k views
   • 
   • magnemoe
   • February 28, 2022

6. Gas giants with athmspheres breathable to us humans.

   By Maria Sirona, February 26, 2022
   • 6 replies
   • 870 views
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   • jimmymcgoochie
   • February 26, 2022

7. Matrix planet.

   By awsumguy76801, February 20, 2022
   • 20 replies
   • 1.7k views
   • 
   • kerbiloid
   • February 26, 2022

8. Coldest natural temperature in the universe?

   By Elthy, February 21, 2022
   • 20 replies
   • 1.7k views
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   • K^2
   • February 24, 2022

9. Long Range Scifi Space Combat 1 2

   By Spacescifi, February 16, 2022
   • 41 replies
   • 3.1k views
   • 
   • Rakaydos
   • February 23, 2022

10. New planet discovered in proxima centuri system

    By insert_name, February 11, 2022
    • 11 replies
    • 1.2k views
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    • Spaceception
    • February 23, 2022

11. I see plenty of 'moon simulators' but what of the walk?

    By boriz, February 19, 2022
    • 6 replies
    • 634 views
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    • Nuke
    • February 23, 2022

12. Space travel without combustion or nuclear power. (Thought experiment/discussion.) 1 2

    By Hyperspace Industries, December 24, 2021
    • 35 replies
    • 2.1k views
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    • Hyperspace Industries
    • February 18, 2022

13. Three legs or four? 1 2

    By boriz, February 11, 2022
    • 27 replies
    • 2.3k views
    • 
    • kerbiloid
    • February 16, 2022

14. Liquid Rhenium Solar Thermal Rocket

    By MatterBeam, October 23, 2017   

    • space
    • solar thermal
    • (and 1 more)

       Tagged with:

      • space
      • solar thermal
      • rocket
    • 19 replies
    • 3.4k views
    • 
    • MatterBeam
    • February 16, 2022

15. Highest Oribtal Altitude

    By Minmus Taster, February 14, 2022   

    • spacex
    • 24 replies
    • 1.2k views
    • 
    • benzman
    • February 15, 2022

16. Solar Power Satellites (split from SpaceX) 1 2 3 4

    By SpaceFace545, June 3, 2021   

    • spacex
    • 92 replies
    • 5.7k views
    • 
    • tater
    • February 15, 2022

17. If Knowledge Is Power Then Could This Cause Science Breakthroughs? 1 2

    By Spacescifi, February 13, 2022
    • 37 replies
    • 2.3k views
    • 
    • JoeSchmuckatelli
    • February 15, 2022

18. What Would Sensors On Scifi SSTO's Even Look Like? 1 2

    By Spacescifi, February 8, 2022
    • 26 replies
    • 1.5k views
    • 
    • kerbiloid
    • February 11, 2022

19. Make your car melt snow?

    By Arugela, February 3, 2022
    • 18 replies
    • 1.9k views
    • 
    • Johnmo89
    • February 10, 2022

20. diamonds as a fuel?

    By Arugela, February 5, 2022
    • 12 replies
    • 1.2k views
    • 
    • Johnmo89
    • February 10, 2022

21. Movie Wonderwoman Would Be Quite Literally... Hot.... Science Applied To Fiction

    By Spacescifi, February 7, 2022
    • 15 replies
    • 2.3k views
    • 
    • kerbiloid
    • February 9, 2022

22. Magnetic Blood Artificial Gravity.... Safe-ish?

    By Spacescifi, February 7, 2022
    • 12 replies
    • 1k views
    • 
    • jimmymcgoochie
    • February 8, 2022

23. The most badS real life Astronaut(s)

    By MKI, January 28, 2022
    • 10 replies
    • 937 views
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    • kerbiloid
    • February 6, 2022

24. Aerojet Rocketdyne Mars mission architecture

    By RealKerbal3x, February 3, 2022
    • 2 replies
    • 724 views
    • 
    • kerbiloid
    • February 4, 2022

25. What Energy/food needs Would a Humanoid With Firefly Light Emission Need?

    By Spacescifi, January 29, 2022
    • 21 replies
    • 1.1k views
    • 
    • Spacescifi
    • January 31, 2022