Science & Spaceflight

6,816 topics in this forum

1. For Questions That Don't Merit Their Own Thread

   • 1
   • 2
   • 3
   • 4
   • 93

   By Skyler4856, November 26, 2014
   • 2,302 replies
   • 90,321 views
   • 
   • Terwin
   • 5 minutes ago

2. What is this place?

   By HarvesteR, October 3, 2012
   • 2 replies
   • 11,831 views
   • 
   • HarvesteR
   • October 3, 2012

3. Russian Launch and Mission Thread

   • 1
   • 2
   • 3
   • 4
   • 31

   By tater, September 11, 2017   

   • roscosmos
   • soyuz
   • (and 2 more)

     Tagged with:

     • roscosmos
     • soyuz
     • proton
     • ils
   • 757 replies
   • 21,361 views
   • 
   • kerbiloid
   • 8 minutes ago

4. Blue Origin thread. (New, replacing lost thread.)

   • 1
   • 2
   • 3
   • 4
   • 35

   By Vanamonde, April 28, 2017
   • 872 replies
   • 31,203 views
   • 
   • Racescort666
   • 16 minutes ago

5. ULA launch thread

   • 1
   • 2
   • 3
   • 4
   • 20

   By tater, September 21, 2017   

   • ula
   • atlas
   • (and 1 more)

     Tagged with:

     • ula
     • atlas
     • delta
   • 485 replies
   • 15,248 views
   • 
   • tater
   • 3 hours ago

6. what is geo orbit

   By Ritesh, yesterday at 03:30 PM
   • 7 replies
   • 116 views
   • 
   • Delay
   • 4 hours ago

7. SpaceX Discussion Thread

   • 1
   • 2
   • 3
   • 4
   • 481

   By Skylon, April 28, 2017   

   • spacex
   • 12,015 replies
   • 412,428 views
   • 
   • Bill Phil
   • 4 hours ago

8. Are retrograde orbits bad in real life too?

   By nascarlaser1, yesterday at 03:27 PM
   • 11 replies
   • 215 views
   • 
   • wumpus
   • 5 hours ago

9. BFR concepts and ideas thread.

   • 1
   • 2
   • 3
   • 4
   • 6

   By NSEP, May 2
   • 140 replies
   • 3,648 views
   • 
   • NSEP
   • 8 hours ago

10. Serious Scientific Answers to Absurd Hypothetical questions

    • 1
    • 2
    • 3
    • 4
    • 23

    By DAL59, November 3, 2017
    • 553 replies
    • 14,224 views
    • 
    • kerbiloid
    • 9 hours ago

11. NASA's OSIRIS-REx

    • 1
    • 2

    By archenemy_6, May 21, 2016
    • 48 replies
    • 3,166 views
    • 
    • insert_name
    • 17 hours ago

12. Bad science in fiction Hall of Shame

    • 1
    • 2
    • 3
    • 4
    • 56

    By peadar1987, January 30
    • 1,382 replies
    • 33,909 views
    • 
    • cubinator
    • 18 hours ago

13. Potentially Habitable Exoplanets (Count still at 55 as of July 2nd 2018 UPDATE!!) 40 Eridani Ab is not potentially habitable after all

    • 1
    • 2
    • 3
    • 4
    • 6

    By Spaceception, December 17, 2015   

    • earthlike
    • exoplanets
    • 143 replies
    • 12,604 views
    • 
    • Spaceception
    • 18 hours ago

14. Starlite nuclear-blast resistant

    By Cassel, October 10
    • 17 replies
    • 350 views
    • 
    • Nutt007
    • 19 hours ago

15. Will StratoLaunch Fly?

    • 1
    • 2
    • 3
    • 4
    • 6

    By fredinno, October 16, 2015
    • 135 replies
    • 8,079 views
    • 
    • tater
    • 20 hours ago

16. KSP compared to a real Soyuz control panel

    By Man in the Mun, Sunday at 02:01 AM
    • 2 replies
    • 174 views
    • 
    • DDE
    • 23 hours ago

17. Launches without a thread (even suborbital)

    By tater, August 25
    • 6 replies
    • 255 views
    • 
    • tater
    • Yesterday at 06:20 PM

18. Chinese Space Program (CNSA) & Ch. commercial launch and discussion

    • 1
    • 2
    • 3
    • 4
    • 7

    By tater, October 9, 2017   

    • cnsa
    • china
    • 165 replies
    • 5,535 views
    • 
    • tater
    • Yesterday at 04:10 PM

19. Imaging a black hole - the EHT

    • 1
    • 2
    • 3

    By Green Baron, April 3, 2017
    • 56 replies
    • 2,116 views
    • 
    • HebaruSan
    • Yesterday at 02:41 AM

20. Hayabusa 2 arrives at ryugu, minerva II-1 "rover" deployed

    • 1
    • 2
    • 3
    • 4
    • 6

    By insert_name, June 16   

    • sample return
    • asteroid
    • (and 1 more)

      Tagged with:

      • sample return
      • asteroid
      • jaxa
    • 130 replies
    • 5,255 views
    • 
    • insert_name
    • Yesterday at 12:06 AM

21. 2mm hole in ISS

    • 1
    • 2
    • 3
    • 4
    • 11

    By munlander1, August 30
    • 257 replies
    • 6,862 views
    • 
    • Racescort666
    • Sunday at 03:19 PM

22. KSP inspired me to design a liquid-fueled rocket engine

    • 1
    • 2
    • 3
    • 4
    • 10

    By ap0r, December 3, 2015   

    • totm
    • liquid
    • (and 1 more)

      Tagged with:

      • totm
      • liquid
      • rocket
    • 229 replies
    • 21,811 views
    • 
    • totalitor
    • Sunday at 09:01 AM

23. Chandra X-ray Observatory shut down...

    By Cassel, Saturday at 07:28 PM
    • 6 replies
    • 186 views
    • 
    • YNM
    • Sunday at 03:18 AM

24. The Hubble Space Telescope is now in "Safe Mode"

    • 1
    • 2

    By James Kerman, October 9   

    • hubble gyro failure
    • 29 replies
    • 642 views
    • 
    • ProtoJeb21
    • Saturday at 10:27 PM

25. Virgin Galactic, Branson's space venture

    • 1
    • 2
    • 3
    • 4
    • 5

    By PB666, December 4, 2015   

    • space flight
    • private
    • (and 1 more)

      Tagged with:

      • space flight
      • private
      • branson
    • 105 replies
    • 5,252 views
    • 
    • insert_name
    • Saturday at 05:23 PM