Science & Spaceflight

8,479 topics in this forum

1. The sun as a photon rocket

   By Spacescifi, May 24, 2019
   • 13 replies
   • 1.1k views
   • 
   • DAL59
   • May 30, 2019

2. Fictional aliens must be different than humans 1 2

   By Spacescifi, May 21, 2019
   • 37 replies
   • 2.3k views
   • 
   • kerbiloid
   • May 30, 2019

3. Observing Starlink(s) in the sky

   By lajoswinkler, May 29, 2019   

   • starlink
   • spacex
   • (and 1 more)

      Tagged with:

     • starlink
     • spacex
     • tracking
   • 1 reply
   • 538 views
   • 
   • Brotoro
   • May 29, 2019

4. The moon and magnets on mars

   By Spacescifi, May 24, 2019
   • 16 replies
   • 1.1k views
   • 
   • kerbiloid
   • May 29, 2019

5. Hermeus supersonic airliner 1 2

   By Shpaget, May 14, 2019
   • 34 replies
   • 2.6k views
   • 
   • mikegarrison
   • May 29, 2019

6. Gimballed nozzle thrust vectoring VS fixed nozzle thrust vectoring

   By Spacescifi, May 26, 2019
   • 8 replies
   • 1.4k views
   • 
   • kerbiloid
   • May 29, 2019

7. Starship, how many decades did we loose? 1 2 3

   By magnemoe, May 16, 2019
   • 71 replies
   • 4k views
   • 
   • IncongruousGoat
   • May 29, 2019

8. Why have multiple rocket nozzles on scifi spaceships?

   By Spacescifi, May 25, 2019
   • 14 replies
   • 1.8k views
   • 
   • Starhawk
   • May 29, 2019

9. Starlink shape

   By MajorTomtom, May 28, 2019
   • 3 replies
   • 1k views
   • 
   • mikegarrison
   • May 28, 2019

10. X-30 Question

    By SRB, May 26, 2019   

    • ssto
    • comparison
    • 9 replies
    • 876 views
    • 
    • Guest
    • May 27, 2019

11. plane info request

    By Jestersage, May 27, 2019
    • 7 replies
    • 747 views
    • 
    • SRB
    • May 27, 2019

12. A candidate Earth Analog in Kepler data revealed by deep learning

    By HabPlanet, May 17, 2019
    • 17 replies
    • 1.6k views
    • 
    • Hypercosmic
    • May 27, 2019

13. Starship Lite, tested in KSP

    By MatterBeam, May 26, 2019
    • 5 replies
    • 2k views
    • 
    • magnemoe
    • May 26, 2019

14. How safe is fusion rocket exhaust in the air?

    By Spacescifi, May 26, 2019
    • 8 replies
    • 1k views
    • 
    • farmerben
    • May 26, 2019

15. Culture names and Maydays (split from SpaceX) 1 2

    By Guest, May 22, 2019   

    • spacex
    • 32 replies
    • 1.9k views
    • 
    • kerbiloid
    • May 25, 2019

16. Recovering Snoopy

    By Gargamel, May 21, 2019
    • 16 replies
    • 1.4k views
    • 
    • magnemoe
    • May 24, 2019

17. BOINC

    By Gargamel, August 18, 2018
    • 11 replies
    • 1.2k views
    • 
    • Gargamel
    • May 24, 2019

18. Weightlessness for only hours and deep space life sustainment 1 2

    By Spacescifi, May 21, 2019
    • 30 replies
    • 2.8k views
    • 
    • RocketSquid
    • May 23, 2019

19. Slingshot acceleration from alpha centauri?

    By farmerben, May 22, 2019
    • 1 reply
    • 420 views
    • 
    • UmbralRaptor
    • May 23, 2019

20. This Day in Spaceflight History 1 2 3 4 25

    By The Raging Sandwich, July 17, 2016   

    • spaceflight
    • history
    • 604 replies
    • 94.2k views
    • 
    • PakledHostage
    • May 22, 2019

21. Jet VS Rocket nozzle in space

    By Spacescifi, May 19, 2019
    • 9 replies
    • 1.2k views
    • 
    • wumpus
    • May 21, 2019

22. NASA on the moon, info or intox ? 1 2 3

    By DNKKING, May 3, 2019
    • 66 replies
    • 4.3k views
    • 
    • ZooNamedGames
    • May 21, 2019

23. ESA, JAXA and CSA to build optionally manned lunar lander

    By insert_name, May 18, 2019
    • 8 replies
    • 598 views
    • 
    • insert_name
    • May 20, 2019

24. Starship Design... a broad look

    By Spacescifi, May 16, 2019
    • 14 replies
    • 1.7k views
    • 
    • kerbiloid
    • May 20, 2019

25. Dark matter is it 'pie in the sky?' 1 2

    By Starstruck69, May 3, 2019   

    • dark matter
    • dark energy
    • 28 replies
    • 1.8k views
    • 
    • RocketSquid
    • May 20, 2019