Science & Spaceflight

8,479 topics in this forum

1. Are ground-based telescopes obolete?

   By Mitchz95, July 27, 2019
   • 12 replies
   • 1.4k views
   • 
   • YNM
   • July 29, 2019

2. NASA's Deep Space Gateway 1 2 3 4

   By Xemina, October 29, 2018
   • 81 replies
   • 7.6k views
   • 
   • tater
   • July 28, 2019

3. Why seperate elevons from ailerons?

   By FishInferno, December 1, 2014
   • 8 replies
   • 5.7k views
   • 
   • Snark
   • July 25, 2019

4. “HeH2O” ...Wait, what?

   By DDE, July 24, 2019
   • 4 replies
   • 882 views
   • 
   • Guest
   • July 25, 2019

5. Constant acceleration VS momentum shift

   By Spacescifi, July 19, 2019
   • 7 replies
   • 828 views
   • 
   • Cunjo Carl
   • July 24, 2019

6. How not to get lost with FTL jumps? 1 2

   By Spacescifi, July 22, 2019
   • 35 replies
   • 2.7k views
   • 
   • Nuke
   • July 24, 2019

7. Off loading cargo from landing stage

   By Jestersage, July 23, 2019
   • 2 replies
   • 475 views
   • 
   • Jestersage
   • July 24, 2019

8. First contact protocol for fictional aliens... 1 2

   By Spacescifi, July 16, 2019
   • 44 replies
   • 2.4k views
   • 
   • kerbiloid
   • July 23, 2019

9. Share your favorite pictures and vids from the apollo program!

   By Flying dutchman, July 20, 2019
   • 8 replies
   • 745 views
   • 
   • Kaa253
   • July 22, 2019

10. SLS is not flying in 2020.

    By tater, July 21, 2019
    • 3 replies
    • 638 views
    • 
    • tater
    • July 21, 2019

11. NASA SLS/Orion/Payloads 1 2 3 4 122

    By _Augustus_, April 28, 2017
    • 3k replies
    • 229.3k views
    • 
    • Vanamonde
    • July 21, 2019

12. Recycling Cans: Future uses of ISS modules

    By Nightside, July 14, 2019   

    • iss
    • speculation
    • 14 replies
    • 1.2k views
    • 
    • NSEP
    • July 20, 2019

13. Apollo 11 in real time

    By tater, June 25, 2019
    • 14 replies
    • 1.4k views
    • 
    • tater
    • July 20, 2019

14. How many engineers does it take to...

    By quasarrgames, October 30, 2015
    • 15 replies
    • 5.1k views
    • 
    • Knightfire
    • July 20, 2019

15. Good Scifi Rocket Nozzle Designs... Less vs more nozzles

    By Spacescifi, July 18, 2019
    • 9 replies
    • 718 views
    • 
    • Nuke
    • July 18, 2019

16. Basic electricity question

    By farmerben, July 12, 2019
    • 14 replies
    • 1.3k views
    • 
    • Nuke
    • July 18, 2019

17. Scifi eyes 1 2 3

    By Spacescifi, July 12, 2019
    • 50 replies
    • 3.9k views
    • 
    • KSK
    • July 17, 2019

18. Apollo 11 50th

    By Kerbinchaser, July 17, 2019   

    • apollo
    • apollo50th
    • (and 2 more)

       Tagged with:

      • apollo
      • apollo50th
      • memories
      • 50th
    • 2 replies
    • 721 views
    • 
    • Kerbinchaser
    • July 17, 2019

19. Mass Problems with propellant from the Moon 1 2

    By RuBisCO, July 12, 2019
    • 44 replies
    • 2.9k views
    • 
    • RuBisCO
    • July 16, 2019

20. What if the Saturn-Shuttle was built instead of what we got? 1 2 3

    By fredinno, February 7, 2016   

    • saturn
    • shuttle
    • (and 1 more)

       Tagged with:

      • saturn
      • shuttle
      • rocket
    • 72 replies
    • 11.8k views
    • 
    • VinnieTheAstronaut
    • July 15, 2019

21. Effects of a superluminal photon

    By Spacescifi, July 12, 2019
    • 13 replies
    • 1k views
    • 
    • kerbiloid
    • July 15, 2019

22. Zipline - Emergency Medical Delivery

    By Shpaget, July 14, 2019
    • 1 reply
    • 575 views
    • 
    • Wjolcz
    • July 14, 2019

23. Rockets- Hot Staging vs. Drifting. 1 2 3

    By Motokid600, April 30, 2014
    • 57 replies
    • 22.7k views
    • 
    • Vanamonde
    • July 14, 2019

24. Looking for opinions about how optimal NASA’s Lunar Gateway plan... 1 2 3

    By Guest, June 11, 2019
    • 67 replies
    • 5.2k views
    • 
    • Nightside
    • July 14, 2019

25. inflatable orbital refueling 1 2

    By farmerben, June 22, 2019
    • 36 replies
    • 2.7k views
    • 
    • natsirt721
    • July 13, 2019