Science & Spaceflight

8,478 topics in this forum

1. LEGO City Space Agency

   By Kerbalsaurus, March 21, 2023
   • 3 replies
   • 382 views
   • 
   • AckSed
   • March 22, 2023

2. How To Safely Land Scifi Torchships On Any Inhabited World

   By Spacescifi, March 19, 2023
   • 16 replies
   • 1.1k views
   • 
   • K^2
   • March 21, 2023

3. A bit different model of universe

   By Jaak, March 15, 2023
   • 5 replies
   • 490 views
   • 
   • lajoswinkler
   • March 20, 2023

4. ULA CEO essay on launch vehicle optimization

   By ILikeIke, March 19, 2023
   • 2 replies
   • 475 views
   • 
   • ILikeIke
   • March 19, 2023

5. Sensationalist news on plastiglomerates

   By lajoswinkler, March 17, 2023   

   • anthropocene
   • plastiglomerate
   • 13 replies
   • 895 views
   • 
   • kerbiloid
   • March 19, 2023

6. liquid air fed scramjet?!

   By Arugela, March 16, 2023
   • 11 replies
   • 690 views
   • 
   • sevenperforce
   • March 16, 2023

7. China's moon lander.

   By Tweeker, March 13, 2023
   • 19 replies
   • 1.6k views
   • 
   • steve9728
   • March 16, 2023

8. sabre specifications?! Uses? Fantasy SSTO.

   By Arugela, March 15, 2023
   • 0 replies
   • 356 views
   • 
   • Arugela
   • March 15, 2023

9. Even If We Had Tiny High Density Power Sources We Still Would Not Have Handheld Phasers.... Right?

   By Spacescifi, March 12, 2023
   • 12 replies
   • 689 views
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   • kerbiloid
   • March 13, 2023

10. arca steam powered booster? 1 2

    By Flying dutchman, May 3, 2019
    • 39 replies
    • 3k views
    • 
    • K^2
    • March 11, 2023

11. Which Energy Collecting Satelite Is Easier To Mass Produce?

    By Spacescifi, March 5, 2023
    • 20 replies
    • 993 views
    • 
    • Spacescifi
    • March 10, 2023

12. Triton's long lost twin.

    By Maria Sirona, March 3, 2023
    • 19 replies
    • 1.7k views
    • 
    • sevenperforce
    • March 9, 2023

13. Holy Smoke! More efficient electric motors with no rare earth minerals

    By darthgently, March 7, 2023
    • 21 replies
    • 894 views
    • 
    • darthgently
    • March 9, 2023

14. Antimatter Rocket-like Exhaust Plume... Very Little Expansion If Any in Upper Atmosphere?

    By Spacescifi, February 25, 2023
    • 5 replies
    • 463 views
    • 
    • kerbiloid
    • February 26, 2023

15. Hayabusa 2 on its way back to earth 1 2 3 4 9

    By insert_name, June 16, 2018   

    • asteroid
    • sample return
    • (and 1 more)

       Tagged with:

      • asteroid
      • sample return
      • jaxa
    • 211 replies
    • 21.7k views
    • 
    • tater
    • February 24, 2023

16. Way to apply yard stick to ground while standing. Tools, physics, balance?! 1 2

    By Arugela, February 6, 2023
    • 32 replies
    • 1.6k views
    • 
    • Arugela
    • February 24, 2023

17. Long tether to moon or mars? Whip it! Whip it good?!

    By Arugela, February 15, 2023
    • 6 replies
    • 639 views
    • 
    • DrNut
    • February 20, 2023

18. The Physics Of Methane Fire Spewing Tails... Safe for the User Or Not?

    By Spacescifi, February 19, 2023
    • 7 replies
    • 537 views
    • 
    • Spacescifi
    • February 20, 2023

19. Scifi Moon Solar Power Base...

    By Spacescifi, February 16, 2023
    • 19 replies
    • 892 views
    • 
    • KSK
    • February 18, 2023

20. Advanced Rocketry Seems More Wasteful From an ISRU Perspective Than Chemical Rocketry

    By Spacescifi, February 16, 2023
    • 11 replies
    • 1k views
    • 
    • Nuke
    • February 18, 2023

21. Desmos/Equation question

    By Gargamel, February 14, 2023
    • 12 replies
    • 777 views
    • 
    • K^2
    • February 15, 2023

22. I asked ChatGPT to help me get to minmus. 1 2 3

    By snkiz, February 11, 2023
    • 74 replies
    • 3.7k views
    • 
    • Vanamonde
    • February 13, 2023

23. Questions About Chemical Rocket Engine Reliability In A Scifi Setting....

    By Spacescifi, February 11, 2023
    • 10 replies
    • 586 views
    • 
    • AckSed
    • February 11, 2023

24. What A Star Wars Setting Would Really Be Like....

    By Spacescifi, February 7, 2023
    • 20 replies
    • 956 views
    • 
    • kerbiloid
    • February 10, 2023

25. The Science Of Old Brains In Young Bodies...

    By Spacescifi, February 6, 2023
    • 4 replies
    • 374 views
    • 
    • steve9728
    • February 6, 2023