Astronomy and Cosmology

3365 topics in this forum

1. Cosmo Basics

   By Martin, October 19, 2008
   • 13 replies
   • 21442 views
   • 
   • swansont
   • August 3, 2018

2. Cosmological Principle 1 2

   By Mordred, May 30, 2015
   • 49 replies
   • 24580 views
   • 
   • YaDinghus
   • July 8, 2018

3. Using BOINC / seti@home?

   By Sayonara, August 29, 2010
   • 10 replies
   • 15289 views
   • 
   • Altruist1
   • March 26, 2016

4. Astronomy links 1 2 3 4 5

   By Martin, May 24, 2004
   • 102 replies
   • 85136 views
   • 
   • tinalay91
   • January 6, 2016

5. The theory of infinity.

   By Guest123456, August 15
   • 20 replies
   • 266 views
   • 
   • Mordred
   • 9 hours ago
6. infinity - could it lead to reincarnation?

   Topic was moved to forum General Philosophy

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

   By Gater, August 11
   • 59 replies
   • 3595 views
   • 
   • Strange
   • Tuesday at 06:02 PM

8. Is the dark energy already present as vacuum energy by nature in the equations of general relativity ?

   By stephaneww, April 17
   • 11 replies
   • 523 views
   • 
   • stephaneww
   • Sunday at 07:30 PM

9. Why is the Earth electrically neutral?

   By Bluemoon, November 20, 2014
   • 11 replies
   • 5302 views
   • 
   • John Cuthber
   • August 12

10. Dark matter = Gravity?

    By QuantumT, August 6
    • 5 replies
    • 191 views
    • 
    • StringJunky
    • August 11

11. Furthest "cloaked BH" found:

    By beecee, August 8
    • 0 replies
    • 70 views
    • 
    • beecee
    • August 8

12. The Habitable Exoplanet Hunting Project

    By alfa015, July 13
    • 1 reply
    • 218 views
    • 
    • alfa015
    • August 6

13. Treasure From Asteroids

    By Airbrush, July 25
    • 23 replies
    • 434 views
    • 
    • Ken Fabian
    • August 5

14. Space dimensions

    By Tesseract999, August 2
    • 16 replies
    • 186 views
    • 
    • Strange
    • August 3

15. Achieving Mars-Earth comunication High-Bandwidth

    By MaximT, July 28
    • 16 replies
    • 218 views
    • 
    • swansont
    • July 29

16. A New Area Law in General Relativity, questions.

    By beecee, July 26
    • 7 replies
    • 265 views
    • 
    • Mordred
    • July 27

17. Can gravitational waves be affected by matter?

    By Ghideon, May 21
    • 23 replies
    • 610 views
    • 
    • swansont
    • July 25

18. A basic question about the big bang

    By Courage, July 17
    • 7 replies
    • 286 views
    • 
    • Mordred
    • July 25

19. Asteroid

    By Leewright10, July 24
    • 4 replies
    • 136 views
    • 
    • Mordred
    • July 25

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

    By coderage9100, November 16, 2018
    • 94 replies
    • 3681 views
    • 
    • Moontanman
    • July 25

21. All observed blue-shifted galaxies are in our Hubble horizon.

    By StringJunky, July 23
    • 2 replies
    • 114 views
    • 
    • StringJunky
    • July 23

22. Mars colony of 500,000 people may not be possible 1 2

    By nec209, June 15
    • 44 replies
    • 1275 views
    • 
    • Moontanman
    • July 18

23. Asteroids As Gas Stations

    By Airbrush, July 11
    • 19 replies
    • 678 views
    • 
    • Curious layman
    • July 16

24. Effects of Rotation Around the Axis

    By Weitter Duckss, July 16
    • 8 replies
    • 219 views
    • 
    • swansont
    • July 16

25. heat transfer in stars

    By Lizzzza, July 14
    • 0 replies
    • 169 views
    • 
    • Lizzzza
    • July 14