Science & Spaceflight

8,476 topics in this forum

1. Sentinel 3A launch 16th February 2016

   By totalitor, February 18, 2016
   • 1 reply
   • 497 views
   • 
   • monophonic
   • February 18, 2016

2. How many Gs would a hard-landing Europa Lander face upon Impact/landing?

   By fredinno, February 17, 2016
   • 15 replies
   • 1.9k views
   • 
   • Spaceception
   • February 18, 2016

3. 55 Cancri e is hot and dry

   By kerbiloid, February 17, 2016
   • 4 replies
   • 1.1k views
   • 
   • Jovus
   • February 18, 2016

4. Engineering forum/place to converse with peers

   By AlextheBodacious, February 16, 2016
   • 2 replies
   • 931 views
   • 
   • BlazingAngel665
   • February 18, 2016

5. Really Stupid Question

   By Dfthu, February 18, 2016   

   • saturn v
   • f-1
   • (and 1 more)

      Tagged with:

     • saturn v
     • f-1
     • j-2
   • 6 replies
   • 900 views
   • 
   • Exploro
   • February 18, 2016

6. Build your own off-world rover with Rasperrified legos

   By PB666, February 17, 2016   

   • rovers
   • space exploration
   • 1 reply
   • 801 views
   • 
   • Findthepin1
   • February 18, 2016

7. Inflatable hydrogen balloon for booster recovery

   By sevenperforce, February 17, 2016   

   • re-entry
   • 9 replies
   • 1.4k views
   • 
   • DerekL1963
   • February 17, 2016

8. Flowers grown on the ISS, what's next? 1 2

   By SgtSomeone, February 13, 2016   

   • iss
   • plants
   • 38 replies
   • 4.4k views
   • 
   • Mikki
   • February 17, 2016

9. Why are Space Elevators not a horrible idea, as bad as gunpowder cannons to space? 1 2 3 4 6

   By SomeGuy123, February 6, 2016
   • 140 replies
   • 10.5k views
   • 
   • MatttheCzar
   • February 17, 2016

10. Free interactive colliding black holes simulation

    By BrightestSupernova, February 17, 2016   

    • gravitational wave
    • 0 replies
    • 511 views
    • 
    • BrightestSupernova
    • February 17, 2016

11. The Moon is an artificial object.

    By ADreamerwithinADream, February 17, 2016
    • 4 replies
    • 801 views
    • 
    • sal_vager
    • February 17, 2016

12. Engine thrust/weight ratio

    By sevenperforce, February 16, 2016   

    • technical
    • 4 replies
    • 842 views
    • 
    • sevenperforce
    • February 17, 2016

13. Questions about a Manned Mars vehicle

    By Sarge00Seven, February 11, 2016
    • 8 replies
    • 1.1k views
    • 
    • DBowman
    • February 17, 2016

14. Invasion of the Space Mold!

    By Mazon Del, February 12, 2016   

    • iss resupply
    • 2 replies
    • 776 views
    • 
    • Mazon Del
    • February 17, 2016

15. "fast" FTL travel and Von Neuman machines 1 2

    By SomeGuy123, February 14, 2016
    • 46 replies
    • 4.7k views
    • 
    • K^2
    • February 16, 2016

16. Should NASA cancel Block II SLS? 1 2 3

    By fredinno, February 12, 2016   

    • sls
    • nasa
    • (and 1 more)

       Tagged with:

      • sls
      • nasa
      • block ii
    • 71 replies
    • 9.6k views
    • 
    • Bill Phil
    • February 16, 2016

17. Solar FREAKIN' roadways discussion 1 2 3 4 9

    By HafCoJoe, May 24, 2014
    • 214 replies
    • 24.7k views
    • 
    • The Yellow Dart
    • February 16, 2016

18. Metallic storage of hydrogen

    By Iago, February 15, 2016
    • 9 replies
    • 1.5k views
    • 
    • fredinno
    • February 16, 2016

19. New Upper Stage Progression for SLS

    By Budgie, February 16, 2016   

    • sls
    • eus
    • (and 1 more)

       Tagged with:

      • sls
      • eus
      • nasa
    • 3 replies
    • 962 views
    • 
    • fredinno
    • February 16, 2016

20. Physics Question

    By Cryova, January 31, 2016
    • 19 replies
    • 2k views
    • 
    • AlextheBodacious
    • February 16, 2016

21. Using the Ground-Based Interceptor as a replacement for ALAMA?

    By fredinno, February 16, 2016   

    • alasa
    • orbitalatk
    • (and 1 more)

       Tagged with:

      • alasa
      • orbitalatk
      • rocket
    • 1 reply
    • 803 views
    • 
    • DerekL1963
    • February 16, 2016

22. North Korea's 5th satellite attempt-7th Feb 2016 1 2 3 4 8

    By xenomorph555, June 4, 2015
    • 175 replies
    • 23.1k views
    • 
    • fredinno
    • February 16, 2016

23. What's better, more low thrust engines, or fewer high thrust engines? 1 2

    By Halo_003, February 11, 2016
    • 34 replies
    • 6k views
    • 
    • Bill Phil
    • February 16, 2016

24. The Alcubierre drive and Gravitational waves (Not a disscussion of them) 1 2

    By Spaceception, December 16, 2015   

    • alcubierre
    • faster than light
    • (and 1 more)

       Tagged with:

      • alcubierre
      • faster than light
      • gravitational wves
    • 36 replies
    • 4.9k views
    • 
    • magnemoe
    • February 15, 2016

25. Turbopumps pumping liquids?

    By dharak1, February 14, 2016
    • 8 replies
    • 2.9k views
    • 
    • K^2
    • February 15, 2016