Astronomy and Cosmology

3379 topics in this forum

1. Cosmo Basics

   By Martin, October 19, 2008
   • 13 replies
   • 22014 views
   • 
   • swansont
   • August 3, 2018

2. Cosmological Principle 1 2

   By Mordred, May 30, 2015
   • 49 replies
   • 25292 views
   • 
   • YaDinghus
   • July 8, 2018

3. Using BOINC / seti@home?

   By Sayonara, August 29, 2010
   • 10 replies
   • 15810 views
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   • Altruist1
   • March 26, 2016

4. Astronomy links 1 2 3 4 5

   By Martin, May 24, 2004
   • 102 replies
   • 85991 views
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   • tinalay91
   • January 6, 2016

5. The Square Kilometre Array

   By alfa015, Friday at 11:05 PM
   • 0 replies
   • 135 views
   • 
   • alfa015
   • Friday at 11:05 PM
6. In the beginning

   Topic was moved to forum Speculations

7. Sun Black hole

   By Lizwi, November 5
   • 2 replies
   • 134 views
   • 
   • MigL
   • November 5

8. Expansion (split from Empty space inside galaxies must be different than empty space outside of them)

   By geordief, November 1
   • 10 replies
   • 309 views
   • 
   • swansont
   • November 4
9. Empty space inside galaxies must be different than empty space outside of them

   Topic was moved to forum Speculations

10. How strong are pulsar winds?

    By SilentSky23, October 29
    • 5 replies
    • 243 views
    • 
    • swansont
    • October 29

11. Comet or Asteroid smashes into OUR moon!

    By EastNamibianSpaceMiningCo, October 26
    • 9 replies
    • 342 views
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    • Airbrush
    • October 28

12. The search for habitable exoplanets in Alpha Centauri

    By alfa015, October 26
    • 0 replies
    • 153 views
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    • alfa015
    • October 26

13. How do concentrations of dark matter arise? 1 2

    By Eise, October 1
    • 46 replies
    • 23978 views
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    • Airbrush
    • October 26

14. A strange hypothetical planet

    By Moreno, September 14, 2018
    • 9 replies
    • 645 views
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    • Janus
    • October 14

15. Treasure From Asteroids 1 2

    By Airbrush, July 25
    • 36 replies
    • 31631 views
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    • Moontanman
    • October 13

16. Help me please, need information on galaxies

    By SergUpstart, October 12
    • 3 replies
    • 288 views
    • 
    • SergUpstart
    • October 12

17. Star's habitable zone?

    By Moontanman, June 8
    • 9 replies
    • 535 views
    • 
    • Moontanman
    • September 30

18. Is gravity really "negative energy"?

    By QuantumT, September 25
    • 11 replies
    • 425 views
    • 
    • swansont
    • September 26

19. Was Mars an ice world?

    By Moontanman, September 13
    • 22 replies
    • 560 views
    • 
    • Moontanman
    • September 18

20. Is space infinite or finite?

    By Gater, September 10
    • 1 reply
    • 317 views
    • 
    • Strange
    • September 10

21. Universe Vs Multiverse !

    By Yusef, September 9
    • 1 reply
    • 305 views
    • 
    • Phi for All
    • September 9

22. Who said the Universe had a beginning? 1 2 3 4

    By Gater, August 11
    • 97 replies
    • 43596 views
    • 
    • swansont
    • September 5

23. Chances of a comet hitting us ?

    By boo, September 2
    • 8 replies
    • 440 views
    • 
    • Janus
    • September 3

24. DIY: Wormhole!

    By QuantumT, August 31
    • 0 replies
    • 273 views
    • 
    • QuantumT
    • August 31

25. If you could tour the galaxy what spectacles would you go to see?

    By boo, August 29
    • 9 replies
    • 388 views
    • 
    • swansont
    • August 29