Science & Spaceflight

8,361 topics in this forum

1. Mission and Launch Index

   By Gargamel, February 23, 2019
   • 23 replies
   • 8k views
   • 
   • Gargamel
   • December 11, 2023

2. For Questions That Don't Merit Their Own Thread 1 2 3 4 361

   By Skyler4856, November 26, 2014
   • 9k replies
   • 502.2k views
   • 
   • DDE
   • Saturday at 07:42 PM

3. What is this place?

   By HarvesteR, October 3, 2012
   • 2 replies
   • 18.3k views
   • 
   • HarvesteR
   • October 3, 2012

4. How do ducted fans work?(how do you calculate thrust?)

   By Arugela, yesterday at 12:29 PM
   • 3 replies
   • 101 views
   • 
   • Nuke
   • Yesterday at 02:29 PM

5. Upcoming Visible Nova in Corona Borealis

   By cubinator, yesterday at 03:53 AM
   • 7 replies
   • 172 views
   • 
   • Piscator
   • 23 hours ago

6. Apophis Encounter 2029

   By darthgently, Wednesday at 07:00 PM   

   • SpaceX
   • asteroid
   • 0 replies
   • 70 views
   • 
   • darthgently
   • Wednesday at 07:00 PM

7. Lunar Environmental Challenges

   By darthgently, Wednesday at 09:53 AM   

   • artemis
   • lunar
   • (and 2 more)

      Tagged with:

     • artemis
     • lunar
     • dust
     • carbon nanotubes
   • 6 replies
   • 198 views
   • 
   • farmerben
   • 6 hours ago

8. Flying A Turbofan For Various Worlds...

   By Spacescifi, Sunday at 07:18 AM
   • 22 replies
   • 455 views
   • 
   • magnemoe
   • 17 hours ago

9. A route to aircraft-like reusability for rocket engines.

   By Exoscientist, April 18
   • 10 replies
   • 386 views
   • 
   • Exoscientist
   • Tuesday at 06:14 PM

10. Mars Manned Mission Designs

    By darthgently, April 18   

    • spacex
    • nasa
    • (and 2 more)

       Tagged with:

      • spacex
      • nasa
      • mav
      • crane
    • 7 replies
    • 222 views
    • 
    • magnemoe
    • April 18

11. Any Good Reason Not To Use Aerospike Rocketry If You Can Cancel Gravity and Also Possess Non-rocket Vacuum Only Scifi Propulsion?

    By Spacescifi, April 15
    • 9 replies
    • 245 views
    • 
    • Nuke
    • April 19

12. FireStar Fusion Drive

    By K^2, April 13
    • 1 reply
    • 212 views
    • 
    • Nuke
    • April 13

13. Odyssey, a personal concept for an Interstellar Probe.

    By Minmus Taster, April 11
    • 2 replies
    • 189 views
    • 
    • Minmus Taster
    • April 12

14. Knowledge Is Power... Only If You Have The Will To Use It....

    By Spacescifi, April 11
    • 21 replies
    • 322 views
    • 
    • darthgently
    • April 13

15. Would Standing Pilot Arranged Jet Fighter Aircraft Ever Be a Thing?

    By Spacescifi, April 6
    • 11 replies
    • 360 views
    • 
    • Spacescifi
    • April 9

16. How do you shoot a moving target algorithmically?

    By LHACK4142, April 4
    • 8 replies
    • 274 views
    • 
    • Hannu2
    • April 4

17. The Feasibility Of Natural Exoskeletal Hands In Scifi...

    By Spacescifi, April 3
    • 13 replies
    • 222 views
    • 
    • darthgently
    • April 4

18. holographic 2D monitor for viewing angles?

    By Arugela, March 30
    • 4 replies
    • 138 views
    • 
    • Nuke
    • April 3

19. Francise scott key bridge. Could it be remade immune to damage? 1 2 3 4

    By Arugela, March 26
    • 88 replies
    • 2k views
    • 
    • Nuke
    • April 12

20. How Do Long Range Space Combat Lasers Work?

    By Spacescifi, March 26
    • 11 replies
    • 255 views
    • 
    • magnemoe
    • March 27

21. the vertical launch approach 1 2

    By farmerben, March 22
    • 45 replies
    • 1k views
    • 
    • magnemoe
    • March 29

22. Metalic hydrogen diamond engine?(or other form of carbon.)

    By Arugela, March 21
    • 8 replies
    • 266 views
    • 
    • kerbiloid
    • March 24

23. Fusion drive when?

    By Exoscientist, March 20
    • 21 replies
    • 493 views
    • 
    • Exoscientist
    • March 22

24. KSP2 Does not follow the coriolis effect.

    By ryleymcc, March 20
    • 8 replies
    • 1.1k views
    • 
    • mikegarrison
    • April 20

25. How Would Humanity Develop If Immortality Was A Thing?

    By Spacescifi, March 20
    • 19 replies
    • 390 views
    • 
    • magnemoe
    • March 30