Science & Spaceflight

8,355 topics in this forum

1. "Near" Future/"hard-sci fi", low infrastructure, SSTOs 1 2 3 4 5

   By KerikBalm, April 4, 2017
   • 100 replies
   • 9k views
   • 
   • Little Tim
   • May 31, 2017

2. "Optical/3D Rectennas" 1 2 3

   By Northstar1989, April 9, 2016
   • 61 replies
   • 5.2k views
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   • kunok
   • October 13, 2016

3. "Rokkit Syense" in CW's "The 100" 1 2 3

   By sevenperforce, August 12, 2018
   • 60 replies
   • 3.2k views
   • 
   • kerbiloid
   • August 15, 2018

4. "Seeding" an astronomical body

   By p1t1o, April 28, 2017
   • 22 replies
   • 1.6k views
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   • Combatsmithen
   • May 9, 2017

5. "Star system" and "solid mass system"

   By WinkAllKerb'', February 3, 2017
   • 13 replies
   • 1.2k views
   • 
   • p1t1o
   • February 8, 2017

6. "The EmDrive Just Won't Die" 1 2 3 4

   By DDE, September 12, 2020   

   • voodoo
   • reactionless drive
   • (and 1 more)

      Tagged with:

     • voodoo
     • reactionless drive
     • darpa
   • 81 replies
   • 4.7k views
   • 
   • K^2
   • October 4, 2020

7. "The king is dead, long live the king!"

   By Arugela, January 2, 2020
   • 3 replies
   • 992 views
   • 
   • Zeiss Ikon
   • January 5, 2020

8. “HeH2O” ...Wait, what?

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

9. “The asteroid mining bubble has burst”

   By DDE, January 11, 2019
   • 5 replies
   • 595 views
   • 
   • Mad Rocket Scientist
   • January 11, 2019

10. (and a little of space too)Why do the reaction wheel need to desaturate sometime?

    By goldenpeach, September 3, 2013
    • 11 replies
    • 2.6k views
    • 
    • cantorobriar
    • September 5, 2013

11. (but flight too) A question about Falcon 9 security 1 2

    By goldenpeach, January 9, 2015
    • 26 replies
    • 3.3k views
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    • Kryten
    • January 10, 2015

12. (Cracked.com) 11 Deep Space Photos You Wont Believe Arent Photoshopped

    By vger, June 15, 2014
    • 7 replies
    • 2k views
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    • xrayfishx
    • June 16, 2014

13. (Edit) Four Laser Guide Star Facility in the Atacama

    By Glaran K'erman, April 29, 2016
    • 14 replies
    • 1.8k views
    • 
    • Shpaget
    • May 2, 2016

14. (Extremely) Long-Term Evolutionary Experiment with Another World

    By Tex, March 13, 2014
    • 3 replies
    • 745 views
    • 
    • Camacha
    • March 13, 2014

15. (July 2014) NASA tests a propellant-less thruster

    By Vindaloo, January 23, 2015
    • 4 replies
    • 1.1k views
    • 
    • Vindaloo
    • January 23, 2015

16. (KOS) Mission Script Pack

    By jandor, October 15, 2014
    • 1 reply
    • 3.1k views
    • 
    • Swifty
    • November 15, 2014

17. (Launch failure) Stratos III Rocket Launch

    By Ultimate Steve, July 25, 2018
    • 12 replies
    • 1.6k views
    • 
    • 4x4cheesecake
    • July 26, 2018

18. (Maybe) Supernova found 1 2

    By Nightfury, April 20, 2018
    • 45 replies
    • 2.8k views
    • 
    • DAL59
    • April 22, 2018

19. (No Longer Possible) Satellite Collision thread (April 9, 2021 17:18 UTC; DMSP 5D-1/F3 & Kosmos-3M Spent 2nd Stage) 1 2

    By YNM, April 9, 2021
    • 25 replies
    • 1.5k views
    • 
    • YNM
    • April 11, 2021

20. (NOT COLD FUSION!) The byproducts of BASIC fusion... 1 2 3 4 5

    By JMBuilder, October 5, 2013
    • 101 replies
    • 10.5k views
    • 
    • Idobox
    • October 17, 2013

21. (Poll) Your current views on reusable launch vehicles 1 2

    By Pipcard, September 7, 2017
    • 36 replies
    • 3.5k views
    • 
    • kerbiloid
    • September 28, 2017

22. (Relatively) Good Gaming computer for under 1000$ 1 2

    By Skyler4856, January 15, 2014
    • 26 replies
    • 4.6k views
    • 
    • Redrobin
    • January 25, 2014

23. (science) Ideas and Concepts showcase thread.

    By NSEP, December 1, 2016
    • 0 replies
    • 445 views
    • 
    • NSEP
    • December 1, 2016

24. (Semi-serious Question) Other than people, what causes crop circles? 1 2

    By Pingonaut, January 10, 2015
    • 41 replies
    • 5.1k views
    • 
    • lajoswinkler
    • January 11, 2015

25. (Song) Try Learn this...

    By victory143, December 18, 2013
    • 0 replies
    • 655 views
    • 
    • victory143
    • December 18, 2013