Astronomy and Space

1,486 topics in this forum

1. What Is A Sun? 1 2 3

   By ClaudeGaiven, March 25, 2017
   • 38 replies
   • 6.4k views
   • 
   • A-wal
   • April 22, 2017

2. Omg Proton Beam Powered Propulsion?

   By Super Polymath, April 18, 2017
   • 3 replies
   • 1.4k views
   • 
   • Darky
   • April 21, 2017

3. Ring Around Jupiter

   By RandalThor66, March 23, 2015   

   • Physics
   • Mechanics
   • (and 1 more)

     Tagged with:

     • Physics
     • Mechanics
     • Astrophysics
   • 14 replies
   • 4.2k views
   • 
   • Darky
   • April 21, 2017

4. Fermi Paradox

   By Darky, April 20, 2017   

   • Fermi-Paradox
   • 2 replies
   • 1.2k views
   • 
   • Darky
   • April 21, 2017

5. Shooting Stars - Meteor

   By Abdelmoghit, February 21, 2017   

   • Astronomy space physics help
   • 1 reply
   • 1.7k views
   • 
   • Darky
   • April 20, 2017

6. Does Proxima B Actually Host Life?

   By alfa015, April 5, 2017   

   • exoplanets
   • 2 replies
   • 2k views
   • 
   • alfa015
   • April 20, 2017

7. Fast Radio Bursts (Frb)

   By current, April 8, 2017
   • 1 reply
   • 1.6k views
   • 
   • current
   • April 8, 2017

8. Tritium Isotope Tubes

   By gradenG, March 27, 2017
   • 0 replies
   • 1.3k views
   • 
   • gradenG
   • March 27, 2017

9. Space Debris

   By Deepwater6, March 21, 2017
   • 1 reply
   • 1.6k views
   • 
   • CraigD
   • March 22, 2017

10. Curvature Of Space May Be Wrong.

    By RegP1, March 7, 2017
    • 4 replies
    • 2.2k views
    • 
    • JMJones0424
    • March 19, 2017

11. The Detection Of Galaxies In Deep Space

    By current, March 7, 2017
    • 5 replies
    • 1.7k views
    • 
    • OceanBreeze
    • March 7, 2017

12. Earth's Orbit

    By ramanisl, February 27, 2017   

    • Earths orbital velocity
    • Direction
    • 7 replies
    • 2.3k views
    • 
    • exchemist
    • March 1, 2017

13. Nasa Back-Up Plan

    By Deepwater6, February 20, 2017
    • 1 reply
    • 1.4k views
    • 
    • CraigD
    • February 20, 2017

14. Pre-Universes

    By petrushkagoogol, February 15, 2017
    • 0 replies
    • 1.3k views
    • 
    • petrushkagoogol
    • February 15, 2017

15. Wolf Moon 1 2

    By fahrquad, January 13, 2017
    • 20 replies
    • 4.2k views
    • 
    • fahrquad
    • February 10, 2017

16. Matter Antimatter Imbalance

    By Maine farmer, February 10, 2017
    • 0 replies
    • 1.5k views
    • 
    • Maine farmer
    • February 10, 2017

17. James Webb

    By Deepwater6, November 2, 2016
    • 15 replies
    • 2.9k views
    • 
    • A-wal
    • February 1, 2017

18. Time Lapse Of The Stars

    By Brownsfan77, January 15, 2017
    • 13 replies
    • 5.1k views
    • 
    • OceanBreeze
    • January 25, 2017

19. Does Spacex $200K Ticket Include Colony Materials?

    By Eclipse Now, October 3, 2016
    • 4 replies
    • 2k views
    • 
    • pzkpfw
    • January 19, 2017

20. Star Travelling, Turned Around And Vanished In 1-2 Seconds?

    By TheUnexpectedKill, October 8, 2016
    • 1 reply
    • 1.4k views
    • 
    • Brownsfan77
    • January 15, 2017

21. Space Weapons

    By Deepwater6, November 29, 2016
    • 1 reply
    • 1.6k views
    • 
    • gr8vity
    • December 5, 2016

22. Space Colony 1 2 3 4

    By Deepwater6, August 6, 2013
    • 59 replies
    • 13.2k views
    • 
    • CraigD
    • November 28, 2016

23. Name That Star

    By Maine farmer, November 20, 2016
    • 4 replies
    • 1.7k views
    • 
    • Maine farmer
    • November 22, 2016

24. Thesis Help

    By rstormview, November 18, 2016
    • 1 reply
    • 1.4k views
    • 
    • CraigD
    • November 21, 2016

25. Time Dilation; Twins Paradox

    By PFC, October 21, 2016
    • 3 replies
    • 1.8k views
    • 
    • A-wal
    • October 22, 2016