Science & Spaceflight

8,465 topics in this forum

1. The Solar System... In Terms Of Propellant Farming

   By Spacescifi, August 2, 2021
   • 18 replies
   • 987 views
   • 
   • GoSlash27
   • August 4, 2021

2. Tesla boat 1 2

   By Lewie, August 1, 2021
   • 46 replies
   • 3.1k views
   • 
   • DDE
   • August 4, 2021

3. Thorium Molten Salt Reactor uses thorium salt.

   By magnemoe, August 2, 2021
   • 10 replies
   • 1.4k views
   • 
   • DDE
   • August 4, 2021

4. Falcon Heavy mission to Europa.

   By Exoscientist, July 27, 2021
   • 5 replies
   • 2.1k views
   • 
   • Mkisofsky
   • August 3, 2021

5. Is sorbitol really better than sugar?

   By Zwalter, July 31, 2021
   • 1 reply
   • 1.2k views
   • 
   • Silavite
   • July 31, 2021

6. Video of a satellite in a plasma wind tunnel

   By Pthigrivi, June 21, 2021
   • 3 replies
   • 629 views
   • 
   • kcs123
   • July 31, 2021

7. Is Ultrasol (NPK 13-0-46) Potassium Nitrate okay to use as an oxidizer?

   By Zwalter, July 30, 2021
   • 0 replies
   • 508 views
   • 
   • Zwalter
   • July 30, 2021

8. Fun With Scifi Tropes.... Tractor Beams (shaped like actual beams)

   By Spacescifi, July 30, 2021
   • 4 replies
   • 681 views
   • 
   • wumpus
   • July 30, 2021

9. Mission To Mars Scifi Challenge 1 2

   By Spacescifi, July 27, 2021
   • 29 replies
   • 1.6k views
   • 
   • kerbiloid
   • July 29, 2021

10. PROXIMA CENTURI , PROXIMA a AND PROXIMA b

    By ASUTOSHJHA, July 28, 2021
    • 2 replies
    • 635 views
    • 
    • cubinator
    • July 28, 2021

11. Frame rates and human perception 1 2

    By Incarnation of Chaos, July 24, 2021
    • 33 replies
    • 3.5k views
    • 
    • JoeSchmuckatelli
    • July 28, 2021

12. Wobbling moon

    By Souptime, July 14, 2021
    • 11 replies
    • 2.5k views
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    • Vanamonde
    • July 27, 2021

13. Neptune Odyssey: A mission concept to the Neptune/Triton system: 1 2

    By Minmus Taster, July 18, 2021
    • 25 replies
    • 1.8k views
    • 
    • Minmus Taster
    • July 27, 2021

14. Starship Based Space Telescope 1 2

    By Shpaget, July 12, 2021
    • 26 replies
    • 2.1k views
    • 
    • tater
    • July 27, 2021

15. Can anybody see or use computers or smartphones in the dreams ?

    By kerbiloid, July 10, 2021
    • 16 replies
    • 1.8k views
    • 
    • KerikBalm
    • July 26, 2021

16. A Reusuable Sea Launched Two Stage? Better Than Spacex? 1 2

    By Spacescifi, July 19, 2021
    • 30 replies
    • 1.7k views
    • 
    • wumpus
    • July 24, 2021

17. 7 Light Year Jumps Versus Reality.... Where You Cannot Go

    By Spacescifi, July 18, 2021
    • 12 replies
    • 963 views
    • 
    • SOXBLOX
    • July 24, 2021

18. Lava lakes on the moon?

    By Guest The Doodling Astronaut, July 22, 2021
    • 13 replies
    • 1.2k views
    • 
    • kerbiloid
    • July 23, 2021

19. R.I.P

    By funnelton, July 21, 2021
    • 1 reply
    • 526 views
    • 
    • Beccab
    • July 21, 2021

20. Mission to mega-comet 2014 UN271

    By RCgothic, July 18, 2021
    • 16 replies
    • 868 views
    • 
    • RCgothic
    • July 20, 2021

21. How to terraform Eve

    By Admiral Fluffy, July 16, 2021   

    • eve
    • terraform
    • 7 replies
    • 832 views
    • 
    • Admiral Fluffy
    • July 20, 2021

22. How big should my sugar rocket to provide thrust (100m distance) on my skateboard with me sitting down

    By Zwalter, July 18, 2021
    • 22 replies
    • 1.7k views
    • 
    • StrandedonEarth
    • July 19, 2021

23. What would tides look like on a planet with two moons?

    By JoeSchmuckatelli, July 16, 2021
    • 20 replies
    • 2.8k views
    • 
    • kerbiloid
    • July 19, 2021

24. SSME based SSTO’s. 1 2 3 4

    By Exoscientist, June 22, 2021
    • 99 replies
    • 6.3k views
    • 
    • Exoscientist
    • July 16, 2021

25. Why does Rhea have a thin oxygen atmophere?

    By Dr. Kerbal, July 14, 2021
    • 3 replies
    • 550 views
    • 
    • UmbralRaptor
    • July 15, 2021