Astronomy and Space

1,484 topics in this forum

1. The Beginnings Of A Terran Space-Faring Civilization

   By Vmedvil2, March 31, 2020
   • 2 replies
   • 1.2k views
   • 
   • Vmedvil2
   • April 2, 2020

2. Make Bioplastic At Home

   By jaypolkam, March 30, 2020
   • 0 replies
   • 802 views
   • 
   • jaypolkam
   • March 30, 2020

3. April Asteroid

   By Timboo, March 28, 2020
   • 1 reply
   • 1.2k views
   • 
   • GAHD
   • March 28, 2020

4. 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
   • 6.9k views
   • 
   • Vmedvil2
   • March 25, 2020

5. Fine Structure Constant 1 2 3 4 6

   By Timboo, February 11, 2020
   • 90 replies
   • 7.7k views
   • 
   • pzkpfw
   • March 12, 2020

6. Is Comet Water Toxic?

   By tetrahedron, March 10, 2020
   • 1 reply
   • 1.3k views
   • 
   • exchemist
   • March 10, 2020

7. Dead Galaxy

   By Timboo, February 9, 2020
   • 3 replies
   • 1.7k views
   • 
   • Timboo
   • February 18, 2020

8. Bubbles Found In Milkey Way

   By Timboo, February 7, 2020
   • 1 reply
   • 1.1k views
   • 
   • Timboo
   • February 9, 2020

9. Dimming On Betelguese

   By Timboo, February 8, 2020
   • 5 replies
   • 1.3k views
   • 
   • Mutex
   • February 9, 2020

10. Early Universe

    By LorrettaOShea, May 23, 2019   

    • Early Universe
    • 3 replies
    • 2.2k views
    • 
    • Mutex
    • January 25, 2020

11. Plants In Super Habitable Exoplanets Could Look Purple

    By alfa015, December 31, 2019
    • 1 reply
    • 1.4k views
    • 
    • Vmedvil2
    • January 1, 2020

12. Espresso: The Decisive Spectrograph To Find Earth 2.0

    By alfa015, December 14, 2019
    • 1 reply
    • 1.4k views
    • 
    • OverUnityDeviceUAP
    • December 14, 2019

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

    By OverUnityDeviceUAP, September 20, 2019
    • 8 replies
    • 2.2k views
    • 
    • OverUnityDeviceUAP
    • December 10, 2019

14. Signs Of Life

    By hazelm, December 5, 2019
    • 0 replies
    • 1.3k views
    • 
    • hazelm
    • December 5, 2019

15. Parker Solar Probe

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

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

    By alfa015, November 26, 2019
    • 0 replies
    • 1.3k views
    • 
    • alfa015
    • November 26, 2019

17. Alien Fossil Found On Mars

    By OverUnityDeviceUAP, November 21, 2019
    • 1 reply
    • 1.4k views
    • 
    • OverUnityDeviceUAP
    • November 21, 2019

18. The Square Kilometre Array

    By alfa015, November 15, 2019
    • 0 replies
    • 1.4k views
    • 
    • alfa015
    • November 15, 2019

19. Sunburst Arc Doppelgangers?

    By hazelm, November 15, 2019
    • 0 replies
    • 1.1k views
    • 
    • hazelm
    • November 15, 2019

20. Irrelevancy Of Friction?

    By hazelm, October 23, 2019
    • 6 replies
    • 1.7k views
    • 
    • hazelm
    • October 25, 2019

21. The Distant Universe Is The Early Universe

    By hazelm, June 2, 2019
    • 7 replies
    • 2k views
    • 
    • Vmedvil2
    • October 9, 2019

22. 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
    • 2.2k views
    • 
    • andytak3740
    • August 8, 2019

23. The Habitable Exoplanet Hunting Project

    By alfa015, July 13, 2019
    • 1 reply
    • 1.5k views
    • 
    • alfa015
    • August 6, 2019

24. Near Earth Objects 1 2 3 4 14

    By Deepwater6, November 4, 2011
    • 236 replies
    • 81.6k views
    • 
    • LaurieAG
    • July 19, 2019

25. Transforming Mars

    By hazelm, July 16, 2019
    • 2 replies
    • 1.5k views
    • 
    • hazelm
    • July 16, 2019