Science & Spaceflight

8,461 topics in this forum

1. Space Launch System: Preliminary Design Review

   By czokletmuss, August 3, 2013
   • 14 replies
   • 2.5k views
   • 
   • metaphor
   • August 5, 2013

2. Moons - how can their orbits occur?

   By AlexL, August 4, 2013
   • 10 replies
   • 2.1k views
   • 
   • metaphor
   • August 5, 2013

3. Invent a second moon for Earth

   By Kerbface, August 4, 2013
   • 13 replies
   • 2.4k views
   • 
   • magnemoe
   • August 5, 2013

4. First Contact With E.T. 1 2 3

   By Ival70, July 25, 2013
   • 55 replies
   • 11.9k views
   • 
   • Seret
   • August 3, 2013

5. What is the issue in creating a self-sustaining fusion reaction?

   By Galacticruler, August 3, 2013
   • 9 replies
   • 2.4k views
   • 
   • Scotius
   • August 3, 2013

6. Mars Beyond Human Landing Achievement? 1 2 3 4

   By NeoMorph, May 31, 2013
   • 84 replies
   • 13.7k views
   • 
   • metaphor
   • August 3, 2013

7. Cycler Orbits (Mun, Duna and Jool)

   By Swifty, August 2, 2013
   • 6 replies
   • 3.1k views
   • 
   • metaphor
   • August 3, 2013

8. Kepler: Watch this space!

   By Alfondoo, August 3, 2013
   • 0 replies
   • 739 views
   • 
   • Alfondoo
   • August 3, 2013

9. A question about the calculation of the delta-v

   By goldenpeach, August 2, 2013
   • 3 replies
   • 1.6k views
   • 
   • tavert
   • August 3, 2013

10. Questions about rocket equations (ISP, exhaust velocity, and T/W ratios)

    By PTNLemay, July 30, 2013
    • 20 replies
    • 5.2k views
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    • PTNLemay
    • August 2, 2013

11. True or False, Is Eficency Better Than High Thrust?

    By Titan Space Agency, August 2, 2013
    • 4 replies
    • 1.9k views
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    • Bunsen
    • August 2, 2013

12. Look what I found on Ebay!

    By tom1499, July 31, 2013
    • 7 replies
    • 2.5k views
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    • Rainbowtrout
    • August 2, 2013

13. Weather control?

    By Joshington, August 2, 2013
    • 2 replies
    • 954 views
    • 
    • jwenting
    • August 2, 2013

14. Fusion Propulsion Research

    By Exclipse, August 1, 2013
    • 2 replies
    • 1.2k views
    • 
    • Albert VDS
    • August 2, 2013

15. How can a photo be more pixels than bytes?

    By Kerbface, August 1, 2013
    • 12 replies
    • 2.2k views
    • 
    • DerekL1963
    • August 2, 2013

16. Slingatron

    By corpsdog, July 31, 2013
    • 12 replies
    • 2.6k views
    • 
    • K^2
    • August 1, 2013

17. Never again.....

    By Rockhem, August 1, 2013
    • 2 replies
    • 988 views
    • 
    • Kilmeister
    • August 1, 2013

18. How does this plant do this? 1 2 3 4

    By Custard Donut (In Space), July 27, 2013
    • 78 replies
    • 10k views
    • 
    • magnemoe
    • August 1, 2013

19. Real Life delta v's?

    By mstrfalco, August 1, 2013
    • 4 replies
    • 2.8k views
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    • stupid_chris
    • August 1, 2013

20. UK's Manned Mars mission Concept 1 2

    By Paprika, July 24, 2013
    • 29 replies
    • 5.6k views
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    • NGTOne
    • August 1, 2013

21. lets discuss compounds besides h2o life could thrive on

    By th3shameless, July 30, 2013
    • 11 replies
    • 2.1k views
    • 
    • nhnifong
    • July 31, 2013

22. Chillin'

    By Flymetothemun, July 29, 2013
    • 9 replies
    • 1.9k views
    • 
    • Lanfranc
    • July 31, 2013

23. Plan a realistic mission to Venus!

    By Pugspaceprogram, July 30, 2013
    • 7 replies
    • 1.8k views
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    • Vaebn
    • July 31, 2013

24. What would be the advantages and disadvantages of a roughly spherical manned capsule?

    By Kerbface, July 30, 2013
    • 16 replies
    • 6.4k views
    • 
    • Kerbface
    • July 31, 2013

25. Planning to build a rocket to go to 200,000 feet

    By Guest Brody_Peffley, July 29, 2013
    • 8 replies
    • 2.1k views
    • 
    • Mustangrande
    • July 31, 2013