Science & Spaceflight

8,357 topics in this forum

1. Copenhagen Suborbitals Discussion 1 2 3 4 6

   By JelloTickles, June 24, 2013
   • 127 replies
   • 25.8k views
   • 
   • Thiel
   • December 23, 2013

2. Strange coincidence, guess which US state have the most Astronauts?

   By Pawelk198604, January 6, 2016   

   • space
   • 15 replies
   • 25.5k views
   • 
   • PB666
   • January 7, 2016

3. What would be the easiest way to OBLITERATE THE ENTIRE PLANET? 1 2 3 4 9

   By Kerbface, July 4, 2013
   • 202 replies
   • 25.4k views
   • 
   • justidutch
   • January 11, 2018

4. 'Vulcan' - ULA's New Rocket 1 2 3 4 7

   By Woopert, April 13, 2015
   • 167 replies
   • 25.2k views
   • 
   • fredinno
   • December 20, 2015

5. X-37B 1 2 3 4 13

   By Kerbal01, May 7, 2017
   • 311 replies
   • 24.5k views
   • 
   • StrandedonEarth
   • February 10

6. SLS or Constellation? 1 2 3 4 7

   By Giggleplex777, April 19, 2013
   • 155 replies
   • 24.5k views
   • 
   • Skyler4856
   • January 4, 2014

7. Pale Red *Dots* ESO | Proxima b confirmed UPDATE 2017 PaleRedDots!! 1 2 3 4 9

   By Spaceception, January 16, 2016   

   • proxima centauri
   • eso
   • (and 1 more)

      Tagged with:

     • proxima centauri
     • eso
     • earthlike exoplanets
   • 200 replies
   • 24.2k views
   • 
   • Spaceception
   • July 17, 2017

8. Fermi Paradox 1 2 3 4 14

   By PB666, June 1, 2016   

   • alien life
   • exobiology
   • 334 replies
   • 24.2k views
   • 
   • magnemoe
   • October 17, 2016

9. CCiCap was announced, SpaceX and Boeing were selected 1 2 3 4 10

   By B787_300, September 16, 2014   

   • boeing
   • cctcap
   • (and 7 more)

      Tagged with:

     • boeing
     • cctcap
     • iss
     • launches
     • nasa
     • russia
     • sierra nevada
     • spacex
     • usa
   • 230 replies
   • 24.1k views
   • 
   • B787_300
   • October 2, 2014

10. SpaceX to reveal their manned DragonV2 capsule tonight 1 2 3 4 8

    By Streetwind, May 29, 2014
    • 175 replies
    • 24k views
    • 
    • magnemoe
    • June 6, 2014

11. A Step Closer To The Alcubierre Drive! 1 2 3 4 8

    By Omicron314, August 21, 2013
    • 176 replies
    • 23.9k views
    • 
    • K^2
    • October 24, 2013

12. Colonization Discussion Thread (split from SpaceX) 1 2 3 4 18

    By mikegarrison, September 29, 2017   

    • mars
    • colonization
    • (and 3 more)

       Tagged with:

      • mars
      • colonization
      • spacex
      • oneill cylinder
      • asteroids
    • 442 replies
    • 23.9k views
    • 
    • Spaceception
    • November 8, 2018

13. I represent an interstellar civilization, What does Earth offer for export? 1 2 3 4 9

    By nhnifong, December 9, 2013
    • 210 replies
    • 23.8k views
    • 
    • Nothalogh
    • December 5, 2015

14. A Guide to Steampunk Space Travel. (Please add your thoughts!) 1 2 3

    By Whirligig Girl, July 13, 2015   

    • steampunks in space
    • 72 replies
    • 23.5k views
    • 
    • c.harlieclarke
    • April 13, 2021

15. Project Orion: A discussion of Science and Science Fiction 1 2 3 4 21

    By Spacescifi, December 18, 2020
    • 522 replies
    • 23.4k views
    • 
    • Spacescifi
    • December 21, 2022

16. Liquid methane as rocket fuel : why so late to the party? 1 2 3 4

    By EzinX, March 16, 2015
    • 77 replies
    • 23.4k views
    • 
    • DDE
    • June 9, 2016

17. Metric/imperial 1 2 3 4 11

    By Kertech, February 16, 2016
    • 265 replies
    • 23.3k views
    • 
    • RizzoTheRat
    • February 24, 2016

18. Rosatom rocket engine failure 1 2 3 4 12

    By Nothalogh, August 10, 2019
    • 294 replies
    • 23.2k views
    • 
    • kerbiloid
    • January 28, 2020

19. Gauging safe distance from nuclear explosion with your thumb? 1 2

    By RainDreamer, October 9, 2015
    • 27 replies
    • 23.2k views
    • 
    • fredinno
    • October 10, 2015

20. Orbital Fighting [Star wars is a good example] 1 2 3 4 6

    By bulletrhli, April 27, 2013
    • 138 replies
    • 23k views
    • 
    • mogacreative
    • November 9, 2018

21. What's your favourite element of the periodic table(if you have one)? 1 2 3 4 6

    By goldenpeach, September 30, 2013
    • 147 replies
    • 22.8k views
    • 
    • Bill Phil
    • September 13, 2015

22. Sentience vs. sapience- get it right!

    By -Velocity-, April 7, 2015
    • 18 replies
    • 22.7k views
    • 
    • WinkAllKerb''
    • November 12, 2016

23. GI joe retaliation zeus weapon 1 2

    By Sirrobert, August 9, 2013
    • 35 replies
    • 22.6k views
    • 
    • Wahgineer
    • February 24, 2014

24. Interplanetary WAR! 1 2 3 4 8

    By bighara, April 4, 2014
    • 194 replies
    • 22.3k views
    • 
    • CavemanNinja
    • May 31, 2014

25. Isp vs Thrust?

    By Dangerous_Beans, August 22, 2013
    • 24 replies
    • 22.3k views
    • 
    • architeuthis
    • November 10, 2014