Science & Spaceflight

8,479 topics in this forum

1. Venus: what went wrong?

   By DDE, September 23, 2019
   • 20 replies
   • 1.5k views
   • 
   • DDE
   • September 25, 2019

2. Inflatable shielding for spacecraft

   By Spacescifi, September 23, 2019
   • 9 replies
   • 990 views
   • 
   • YNM
   • September 24, 2019

3. Best thrust to weight ratio propellant

   By Spacescifi, September 22, 2019
   • 17 replies
   • 2.7k views
   • 
   • kerbiloid
   • September 23, 2019

4. Which of these (listed below) is the best method for sublight space travel? 1 2 3

   By Maximum7, September 14, 2019
   • 54 replies
   • 5.8k views
   • 
   • Bill Phil
   • September 23, 2019

5. 4 potentially habitable exoplanets are 12 light years away

   By caballerodiez, September 17, 2019
   • 1 reply
   • 463 views
   • 
   • Gargamel
   • September 23, 2019

6. Is A Gimballed Aerospike Possible?

   By Spacescifi, September 20, 2019
   • 22 replies
   • 3.2k views
   • 
   • sevenperforce
   • September 22, 2019

7. Heaviest possible SSTO 1 2

   By Spacescifi, September 18, 2019
   • 40 replies
   • 2.4k views
   • 
   • Incarnation of Chaos
   • September 21, 2019

8. Oled/displays as alternative/suppliment to quantum computing!? 1 2

   By Arugela, April 28, 2019
   • 32 replies
   • 2.3k views
   • 
   • Arugela
   • September 21, 2019

9. Fastest Theoretical Tech Development 1 2 3

   By Spacescifi, September 8, 2019
   • 52 replies
   • 5.5k views
   • 
   • kerbiloid
   • September 20, 2019

10. The Most Optima All Aroundl Gravity Defying Spacecraft Shape Is....

    By Spacescifi, September 15, 2019
    • 9 replies
    • 911 views
    • 
    • Nuke
    • September 20, 2019

11. I'm at Kennedy Space Center today

    By JedTech, September 19, 2019
    • 8 replies
    • 762 views
    • 
    • JedTech
    • September 20, 2019

12. Is K2-18b really a potentially habitable exoplanet?

    By ProtoJeb21, September 16, 2019
    • 10 replies
    • 990 views
    • 
    • Mitchz95
    • September 18, 2019

13. totm september 2019 How to Live on Other Planets: Uranus

    By MatterBeam, August 22, 2019
    • 15 replies
    • 4.3k views
    • 
    • Starstruck69
    • September 18, 2019

14. Combine risc and cisc?

    By Arugela, September 17, 2019
    • 2 replies
    • 1.3k views
    • 
    • wumpus
    • September 17, 2019

15. The Limits of Rocketry VS Pusher Plate Propulsion

    By Spacescifi, September 17, 2019
    • 2 replies
    • 537 views
    • 
    • Spacescifi
    • September 17, 2019

16. Realistic starship equipment vs scifi equipment 1 2

    By Spacescifi, September 8, 2019
    • 44 replies
    • 3k views
    • 
    • magnemoe
    • September 16, 2019

17. Refueling off celestial bodies

    By Spacescifi, September 11, 2019
    • 13 replies
    • 922 views
    • 
    • Spacescifi
    • September 13, 2019

18. Low Tech First Contact Methods

    By Spacescifi, September 11, 2019
    • 9 replies
    • 906 views
    • 
    • kerbiloid
    • September 12, 2019

19. Potentially Habitable Exoplanets 1 2 3 4 7

    By Spaceception, December 17, 2015   

    • exoplanets
    • earthlike
    • 156 replies
    • 33.1k views
    • 
    • Spaceception
    • September 12, 2019

20. Building a rocket for a Star Trek experience

    By Spacescifi, September 10, 2019
    • 12 replies
    • 962 views
    • 
    • radonek
    • September 11, 2019

21. need a tiny ppt thruster?

    By Nuke, September 9, 2019
    • 3 replies
    • 822 views
    • 
    • Nuke
    • September 10, 2019

22. Augustine Commission Audio?

    By Callistoan, September 10, 2019
    • 0 replies
    • 399 views
    • 
    • Callistoan
    • September 10, 2019

23. Buiding a more EPIC baking soda rocket

    By Spacescifi, September 8, 2019
    • 15 replies
    • 3.6k views
    • 
    • Nuke
    • September 10, 2019

24. Off world built spaceships 1 2

    By Spacescifi, September 6, 2019
    • 29 replies
    • 2.2k views
    • 
    • farmerben
    • September 8, 2019

25. Unexplained gel, AKA Mystery Goo, discovered on Moon

    By Superfluous J, August 31, 2019
    • 19 replies
    • 2.1k views
    • 
    • Lisias
    • September 8, 2019