Astronomy and Space

1,417 topics in this forum

1. Building A Spaceship That Can Travel Out Of The Solar System 1 2 3 4

   By VictorMedvil, July 30, 2018
   • 61 replies
   • 4.6k views
   • 
   • VictorMedvil
   • March 29, 2020

2. April Asteroid

   By Timboo, March 28, 2020
   • 1 reply
   • 370 views
   • 
   • GAHD
   • March 28, 2020

3. Possible Proof Of The Great Filter

   By Vmedvil, October 20, 2017   

   • Aliens
   • Great Filter
   • (and 6 more)

     Tagged with:

     • Aliens
     • Great Filter
     • Femiparadox
     • UFO
     • Distress signal
     • Possible Hoax
     • Extinction
     • Survival
   • 10 replies
   • 3.3k views
   • 
   • VictorMedvil
   • March 25, 2020

4. Nuclear Reheat And Mars Terra-Formation

   By VictorMedvil, June 29, 2018   

   • Mars
   • Terraform
   • (and 2 more)

     Tagged with:

     • Mars
     • Terraform
     • Nuclear
     • Reheat
   • 2 replies
   • 1.9k views
   • 
   • VictorMedvil
   • March 20, 2020

5. Time Travel Suggestions 1 2

   By VictorMedvil, August 1, 2018
   • 18 replies
   • 2.8k views
   • 
   • VictorMedvil
   • March 18, 2020

6. Black Hole Warheads

   By VictorMedvil, July 2, 2019
   • 7 replies
   • 1.1k views
   • 
   • VictorMedvil
   • March 16, 2020

7. Fine Structure Constant 1 2 3 4 6

   By Timboo, February 11, 2020
   • 92 replies
   • 3k views
   • 
   • pzkpfw
   • March 12, 2020

8. Is Comet Water Toxic?

   By tetrahedron, March 10, 2020
   • 1 reply
   • 442 views
   • 
   • exchemist
   • March 10, 2020

9. Dead Galaxy

   By Timboo, February 9, 2020
   • 3 replies
   • 639 views
   • 
   • Timboo
   • February 18, 2020

10. Bubbles Found In Milkey Way

    By Timboo, February 7, 2020
    • 3 replies
    • 470 views
    • 
    • Flummoxed
    • February 10, 2020

11. Dimming On Betelguese

    By Timboo, February 8, 2020
    • 5 replies
    • 476 views
    • 
    • Mutex
    • February 9, 2020

12. Early Universe

    By LorrettaOShea, May 23, 2019   

    • Early Universe
    • 6 replies
    • 1.2k views
    • 
    • Mutex
    • January 25, 2020

13. Plants In Super Habitable Exoplanets Could Look Purple

    By alfa015, December 31, 2019
    • 2 replies
    • 544 views
    • 
    • Flummoxed
    • January 1, 2020

14. Espresso: The Decisive Spectrograph To Find Earth 2.0

    By alfa015, December 14, 2019
    • 1 reply
    • 668 views
    • 
    • OverUnityDeviceUAP
    • December 14, 2019

15. There Is Actual Proof That The Universe Is Older Than 13.8 Billion Years

    By OverUnityDeviceUAP, September 20, 2019
    • 8 replies
    • 974 views
    • 
    • OverUnityDeviceUAP
    • December 10, 2019

16. Signs Of Life

    By hazelm, December 5, 2019
    • 0 replies
    • 551 views
    • 
    • hazelm
    • December 5, 2019

17. Parker Solar Probe

    By hazelm, December 5, 2019
    • 0 replies
    • 396 views
    • 
    • hazelm
    • December 5, 2019

18. Inside The 24/7 Search For Another Habitable Planet Within 100 Light Years Of Earth

    By alfa015, November 26, 2019
    • 0 replies
    • 632 views
    • 
    • alfa015
    • November 26, 2019

19. Alien Fossil Found On Mars

    By OverUnityDeviceUAP, November 21, 2019
    • 1 reply
    • 546 views
    • 
    • OverUnityDeviceUAP
    • November 21, 2019

20. The Square Kilometre Array

    By alfa015, November 15, 2019
    • 0 replies
    • 548 views
    • 
    • alfa015
    • November 15, 2019

21. Sunburst Arc Doppelgangers?

    By hazelm, November 15, 2019
    • 0 replies
    • 461 views
    • 
    • hazelm
    • November 15, 2019

22. Irrelevancy Of Friction?

    By hazelm, October 23, 2019
    • 6 replies
    • 850 views
    • 
    • hazelm
    • October 25, 2019

23. The Distant Universe Is The Early Universe

    By hazelm, June 2, 2019
    • 7 replies
    • 980 views
    • 
    • VictorMedvil
    • October 9, 2019

24. Magnetic Field Line Rockets/jets

    By andytak3740, July 30, 2019   

    • Rockets
    • Space
    • (and 3 more)

      Tagged with:

      • Rockets
      • Space
      • Magnet
      • Field line
      • Jets
    • 3 replies
    • 1.1k views
    • 
    • andytak3740
    • August 8, 2019

25. The Habitable Exoplanet Hunting Project

    By alfa015, July 13, 2019
    • 1 reply
    • 684 views
    • 
    • alfa015
    • August 6, 2019