Astronomy and Cosmology

3390 topics in this forum

1. Cosmo Basics

   By Martin, October 19, 2008
   • 13 replies
   • 22392 views
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   • swansont
   • August 3, 2018

2. Cosmological Principle 1 2

   By Mordred, May 30, 2015
   • 49 replies
   • 25773 views
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   • YaDinghus
   • July 8, 2018

3. Using BOINC / seti@home?

   By Sayonara, August 29, 2010
   • 10 replies
   • 16144 views
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   • Altruist1
   • March 26, 2016

4. Astronomy links 1 2 3 4 5

   By Martin, May 24, 2004
   • 102 replies
   • 86606 views
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   • tinalay91
   • January 6, 2016

5. Is the Earth close to the center of the Universe ?

   By MaximT, Thursday at 10:30 PM
   • 12 replies
   • 110 views
   • 
   • Mordred
   • 17 hours ago

6. Do we have any way of taming dark matter?

   By Calebeano, yesterday at 02:36 AM
   • 3 replies
   • 65 views
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   • Endy0816
   • Yesterday at 04:48 AM

7. I finally found an accurate article on the speed of universal expansion 1 2 3

   By Angelo, January 10
   • 58 replies
   • 5683 views
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   • MaximT
   • Thursday at 10:18 PM

8. If there was a big bang 14 or so billion years ago and all mass

   By Angelo, January 7
   • 14 replies
   • 164 views
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   • Mordred
   • January 8

9. Plants in Super Habitable Exoplanets Could Look Purple

   By alfa015, December 31, 2019
   • 11 replies
   • 147 views
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   • Airbrush
   • January 4

10. Stellar engine

    By Curious layman, January 1
    • 15 replies
    • 335 views
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    • J.C.MacSwell
    • January 3

11. What is dark matter?

    By KANDEL, December 26, 2019
    • 3 replies
    • 199 views
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    • Airbrush
    • December 27, 2019

12. Can we see a correlation between the Cosmic microwave background map and the visible universe?

    By Blind Watchmaker, December 23, 2019
    • 14 replies
    • 275 views
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    • iNow
    • December 24, 2019

13. Size a solution to Fermi Paradox? 1 2 3 4

    By coderage9100, November 16, 2018
    • 98 replies
    • 4270 views
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    • dimreepr
    • December 24, 2019

14. What was the Singularity point before the Big Bang?

    By Blind Watchmaker, December 23, 2019
    • 7 replies
    • 186 views
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    • Strange
    • December 24, 2019

15. Biggest Cannon in the Universe 3c186

    By Airbrush, November 30, 2019
    • 4 replies
    • 393 views
    • 
    • Airbrush
    • December 4, 2019

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

    By alfa015, November 26, 2019
    • 1 reply
    • 185 views
    • 
    • Airbrush
    • November 28, 2019

17. Could signal encryption explain the Fermi Paradox?

    By TakenItSeriously, November 24, 2019
    • 2 replies
    • 211 views
    • 
    • Airbrush
    • November 26, 2019

18. The Square Kilometre Array

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

19. Sun Black hole

    By Lizwi, November 5, 2019
    • 2 replies
    • 258 views
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    • MigL
    • November 5, 2019

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

    By geordief, November 1, 2019
    • 10 replies
    • 491 views
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    • swansont
    • November 4, 2019

21. How strong are pulsar winds?

    By SilentSky23, October 29, 2019
    • 5 replies
    • 348 views
    • 
    • swansont
    • October 29, 2019

22. Comet or Asteroid smashes into OUR moon!

    By EastNamibianSpaceMiningCo, October 26, 2019
    • 9 replies
    • 488 views
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    • Airbrush
    • October 28, 2019

23. The search for habitable exoplanets in Alpha Centauri

    By alfa015, October 26, 2019
    • 0 replies
    • 249 views
    • 
    • alfa015
    • October 26, 2019

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

    By Eise, October 1, 2019
    • 46 replies
    • 24203 views
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    • Airbrush
    • October 26, 2019

25. A strange hypothetical planet

    By Moreno, September 14, 2018
    • 9 replies
    • 810 views
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    • Janus
    • October 14, 2019