Science & Spaceflight

8,482 topics in this forum

1. Accelerator driven fission drive hybrid orion.

   By farmerben, February 3
   • 3 replies
   • 180 views
   • 
   • Nuke
   • February 5

2. Impulse Space

   By darthgently, November 14, 2024   

   • Tom Mueller
   • 2 replies
   • 315 views
   • 
   • darthgently
   • February 4

3. ISRO Discussion Thread 1 2 3 4 17

   By TheEpicSquared, June 4, 2017   

   • isro
   • 420 replies
   • 41.6k views
   • 
   • AckSed
   • February 3

4. Philidelphia plane crash analysis help.

   By Arugela, February 1
   • 11 replies
   • 510 views
   • 
   • tater
   • February 3

5. Iranian Space Program (ISA) Thread

   By SunlitZelkova, December 6, 2023
   • 2 replies
   • 701 views
   • 
   • darthgently
   • February 3

6. JAXA (& other Japanese) Launch and Discussion Thread 1 2 3 4 15

   By tater, August 19, 2017
   • 353 replies
   • 35.1k views
   • 
   • tater
   • February 2

7. Solar system formation? I've looked and I'm not satisfied the generally accepted explanation is satisfactory.

   By GeoffonTour, January 29
   • 10 replies
   • 584 views
   • 
   • Spacescifi
   • February 2

8. Theoretical Max Isp of a Nuclear Saltwater Rocket?

   By DareMightyThingsJPL, February 1   

   • nuclear
   • engine
   • (and 3 more)

      Tagged with:

     • nuclear
     • engine
     • isp
     • moarpowa
     • question
   • 4 replies
   • 241 views
   • 
   • DareMightyThingsJPL
   • February 2

9. Administrator Isaacman? 1 2 3

   By tater, December 4, 2024
   • 69 replies
   • 2.4k views
   • 
   • tater
   • January 31

10. Combustion LH2 with excess LO2 in pre-burner

    By EYAGGELOS TSICHLAS, January 30   

    • preburner
    • combustion
    • (and 1 more)

       Tagged with:

      • preburner
      • combustion
      • turbopump
    • 2 replies
    • 249 views
    • 
    • EYAGGELOS TSICHLAS
    • January 31

11. Nasa's new moon landing mission architecture is kind of insane.

    By JD_, January 30
    • 1 reply
    • 136 views
    • 
    • K^2
    • January 30

12. Agriculture on Mars 1 2

    By farmerben, January 15
    • 31 replies
    • 1k views
    • 
    • darthgently
    • January 30

13. I think I have a theory (hypothesis?) that would explain the double slit experiment and black holes. Please have a look if you're interested.

    By GeoffonTour, January 28
    • 14 replies
    • 551 views
    • 
    • Jacke
    • January 29

14. How large a space telescope do we need to see exo-civilizations? 1 2

    By Exoscientist, September 27, 2020   

    • exobiology
    • alien life
    • (and 2 more)

       Tagged with:

      • exobiology
      • alien life
      • space telescopes
      • exo-civilizations
    • 31 replies
    • 2.6k views
    • 
    • magnemoe
    • January 28

15. Quantum Physics discussion thread

    By 4472TJ, February 20, 2019   

    • physics
    • nerd haven
    • (and 2 more)

       Tagged with:

      • physics
      • nerd haven
      • theorys
      • quantum physics
    • 9 replies
    • 1.2k views
    • 
    • farmerben
    • January 26

16. Possibly My Final Rant On Scifi Hand Held Directed Energy Weapons...

    By Spacescifi, January 18
    • 8 replies
    • 467 views
    • 
    • magnemoe
    • January 26

17. The Analysis of Sea Levels. 1 2 3 4 41

    By mikegarrison, July 15, 2021
    • 1k replies
    • 61.2k views
    • 
    • darthgently
    • January 20

18. How NASA funding works

    By darthgently, January 19   

    • Eager Space
    • NASA
    • 5 replies
    • 291 views
    • 
    • tater
    • January 19

19. Fess up - who's junk is this? 1 2

    By JoeSchmuckatelli, January 3
    • 31 replies
    • 1.3k views
    • 
    • magnemoe
    • January 17

20. Scifi Scenario... How Ubiquitous Would Bomb Energy Dense Batteries Be For Practical and Safety Reasons?

    By Spacescifi, January 13
    • 6 replies
    • 402 views
    • 
    • Spacescifi
    • January 16

21. Rocket Factory Augsburg 1 2

    By tater, August 31, 2021
    • 42 replies
    • 4.9k views
    • 
    • AckSed
    • January 16

22. Firefly Aerospace Discussion Thread 1 2 3 4 9

    By Ultimate Steve, May 3, 2018
    • 206 replies
    • 20.2k views
    • 
    • Gargamel
    • January 16

23. ISP of a Bottle Rocket

    By dozerman, January 8
    • 13 replies
    • 533 views
    • 
    • monophonic
    • January 14

24. Why One World Governments Are Hard... Even In Certain Scifi Series..

    By Spacescifi, January 10
    • 2 replies
    • 287 views
    • 
    • Vanamonde
    • January 11

25. Stuff about Solar Power for Mars, split from another thread.

    By Ultimate Steve, January 6
    • 16 replies
    • 344 views
    • 
    • darthgently
    • January 8