Science & Spaceflight

8,365 topics in this forum

1. Metalic hydrogen diamond engine?(or other form of carbon.)

   By Arugela, March 21
   • 8 replies
   • 273 views
   • 
   • kerbiloid
   • March 24

2. Fusion drive when?

   By Exoscientist, March 20
   • 21 replies
   • 519 views
   • 
   • Exoscientist
   • March 22

3. KSP2 Does not follow the coriolis effect.

   By ryleymcc, March 20
   • 8 replies
   • 1.1k views
   • 
   • mikegarrison
   • April 20

4. How Would Humanity Develop If Immortality Was A Thing?

   By Spacescifi, March 20
   • 19 replies
   • 406 views
   • 
   • magnemoe
   • March 30

5. An Alternative Way Of Supplying Energy For FTL In Scifi...

   By Spacescifi, March 19
   • 5 replies
   • 159 views
   • 
   • kerbiloid
   • March 20

6. R.I.P. Tom Stafford

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

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

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

8. NASA Chandra situation

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

9. 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
   • 191 views
   • 
   • kerbiloid
   • March 13

10. How do lenses really work?

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

11. Magnetohydrodynamic Research Into Uber Magnets...

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

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

    By Spacescifi, March 9
    • 42 replies
    • 1.1k views
    • 
    • kerbiloid
    • March 22

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

    By cubinator, March 7
    • 283 replies
    • 5.6k views
    • 
    • sevenperforce
    • Thursday at 07:04 PM

14. The Technology Development Goldilocks Zone...

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

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

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

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

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

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

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

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

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

19. An 50 minutes video about the Rocketdyne Tripropellant engine

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

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

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

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

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

22. How livable is Titan?

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

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

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

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

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

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

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