Science & Spaceflight

8,360 topics in this forum

1. R.I.P. Tom Stafford

   By PakledHostage, March 18
   • 0 replies
   • 85 views
   • 
   • PakledHostage
   • March 18

2. How Come Nuclear Saltwater Rocket Engines Do Not Melt?

   By Spacescifi, March 16
   • 16 replies
   • 379 views
   • 
   • sevenperforce
   • March 20

3. NASA Chandra situation

   By darthgently, March 14
   • 6 replies
   • 208 views
   • 
   • DDE
   • March 15

4. If A Person Had Skin, Organs, and Muscle With The Same Strength and Stretchiness as Spider Silk Would They Be Super Durable?

   By Spacescifi, March 11
   • 5 replies
   • 181 views
   • 
   • kerbiloid
   • March 13

5. How do lenses really work?

   By LHACK4142, March 10
   • 6 replies
   • 267 views
   • 
   • Hannu2
   • March 19

6. Magnetohydrodynamic Research Into Uber Magnets...

   By Spacescifi, March 10
   • 5 replies
   • 270 views
   • 
   • kerbiloid
   • March 11

7. Antimatter Propulsion.. From Earth To Mars Only Requires Milligrams?! 1 2

   By Spacescifi, March 9
   • 42 replies
   • 998 views
   • 
   • kerbiloid
   • March 22

8. "Great American Eclipse" II: April 8 2024 1 2 3 4 12

   By cubinator, March 7
   • 282 replies
   • 5.2k views
   • 
   • cubinator
   • April 15

9. The Technology Development Goldilocks Zone...

   By Spacescifi, March 7
   • 10 replies
   • 238 views
   • 
   • magnemoe
   • March 8

10. maximum ISP for metalic hydrogen? (beyond 1700 isp)

    By Arugela, March 6
    • 1 reply
    • 117 views
    • 
    • mikegarrison
    • March 6

11. Scifi Space Trade and Currency.... What Is Elite Dangerous Correct and Wrong About?

    By Spacescifi, March 3
    • 8 replies
    • 250 views
    • 
    • kerbiloid
    • March 4

12. Analyzing An Easy Peasy Method For First Contact With Low Orbit Tech Sapient Human-like Races...

    By Spacescifi, February 29
    • 23 replies
    • 463 views
    • 
    • kerbiloid
    • March 1

13. Scifi Question; If Rocket Thrust Could Be Inverted...

    By Spacescifi, February 29
    • 13 replies
    • 252 views
    • 
    • Spacescifi
    • March 1

14. An 50 minutes video about the Rocketdyne Tripropellant engine

    By magnemoe, February 26
    • 10 replies
    • 471 views
    • 
    • Davi SDF
    • March 1

15. Speculating on the current conditions of defunct probes. 1 2

    By Minmus Taster, February 26
    • 27 replies
    • 574 views
    • 
    • magnemoe
    • March 1

16. Maximum Mass Of A Scifi SSTO Versus The Most Common Mass and Crew Complement...

    By Spacescifi, February 24
    • 6 replies
    • 169 views
    • 
    • KSK
    • February 26

17. How livable is Titan?

    By Minmus Taster, February 22
    • 15 replies
    • 497 views
    • 
    • kerbiloid
    • February 28

18. What Could You Do With a 3 Yottaton Bomb?

    By Spacescifi, February 21
    • 15 replies
    • 396 views
    • 
    • KSK
    • February 23

19. Scifi Question: Is Governing An Interstellar Empire From The Past Feasible?

    By Spacescifi, February 19
    • 15 replies
    • 354 views
    • 
    • kerbiloid
    • February 23

20. If you had more payload capacity to the moon than you actually needed what would you take?

    By farmerben, February 19
    • 13 replies
    • 316 views
    • 
    • 55delta
    • February 22

21. Long term storage of fuel and oxidizer in space.

    By farmerben, February 18
    • 20 replies
    • 488 views
    • 
    • mikegarrison
    • March 7

22. Day length on Deimos

    By farmerben, February 11
    • 4 replies
    • 253 views
    • 
    • GluttonyReaper
    • February 12

23. Surface transport for Martian volcanoes.

    By farmerben, February 10
    • 13 replies
    • 399 views
    • 
    • kerbiloid
    • February 12

24. totm apr 2024 Voyager 1 in critical condition 1 2 3

    By Minmus Taster, February 8
    • 57 replies
    • 1.8k views
    • 
    • darthgently
    • Tuesday at 09:40 PM

25. Ideas about Lunar station wanted...

    By zxzx, February 5   

    • lunar
    • lunar lander
    • (and 2 more)

       Tagged with:

      • lunar
      • lunar lander
      • basebuilding
      • base
    • 14 replies
    • 557 views
    • 
    • zxzx
    • February 7