Astronomy and Cosmology

3708 topics in this forum

1. Dark matter versions of black holes?

   By Baby Astronaut, September 11, 2008
   • 3 replies
   • 1k views
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   • Gilded
   • September 11, 2008

2. Iya 2009

   By Arch2008, January 2, 2009
   • 1 reply
   • 1k views
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   • snp.gupta
   • January 3, 2009

3. Does black hole has the door of next universe?

   By Sunil, August 12, 2010
   • 2 replies
   • 1k views
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   • Sunil
   • September 29, 2010

4. Universe Maps

   By eaknarak, November 5, 2011
   • 1 reply
   • 1k views
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   • granpa
   • November 6, 2011

5. Did the universe have a beginning?

   By petrushka.googol, October 6, 2013
   • 1 reply
   • 1k views
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   • Airbrush
   • October 6, 2013

6. Alas, poor Spirit...

   By Arch2008, January 5, 2010
   • 1 reply
   • 1k views
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   • insane_alien
   • January 5, 2010

7. Lunar Map: The Lunar Far Side

   By MolecularMan14, October 21, 2005
   • 0 replies
   • 1k views
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   • MolecularMan14
   • October 21, 2005

8. Could this disprove dark matter?

   By ElasticCollision, September 30, 2012
   • 2 replies
   • 1k views
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   • ElasticCollision
   • September 30, 2012

9. Expansion (split from quantification of space-time)

   By pittsburghjoe, December 25, 2016
   • 1 reply
   • 1k views
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   • Strange
   • December 25, 2016

10. What's the half life of dark matter?

    By Vexen, March 16, 2019
    • 5 replies
    • 1k views
    • 
    • Strange
    • March 16, 2019

11. Evidence of Water in Lunar Rocks: Water on Moon May Be Widespread, Similar to Earth's

    By alex sam, July 22, 2010
    • 2 replies
    • 1k views
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    • alex sam
    • July 24, 2010

12. giant mysterious objects around a star

    By dream888, December 3, 2010
    • 1 reply
    • 1k views
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    • steevey
    • February 7, 2011

13. Magnetic field of neutron stars

    By King108, June 16, 2017
    • 1 reply
    • 1k views
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    • beecee
    • June 16, 2017

14. "Typical astrophysicists"

    By Robin Hood, September 24, 2008
    • 1 reply
    • 1k views
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    • Martin
    • September 25, 2008

15. Quark, Lepton, Baryon, Atom, Etc

    By Airbrush, March 8, 2009
    • 3 replies
    • 1k views
    • 
    • ydoaPs
    • March 8, 2009

16. Would a polar reversal effect the Earth's rotational axis or wobble???

    By RichF, November 29, 2005
    • 0 replies
    • 1k views
    • 
    • RichF
    • November 29, 2005

17. Light vs.Gravity

    By lucky45, January 23, 2010
    • 4 replies
    • 998 views
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    • Airbrush
    • January 25, 2010

18. Proper motion in the universe

    By losfomot, June 18, 2007
    • 2 replies
    • 997 views
    • 
    • Martin
    • June 18, 2007

19. Only steps away from the Void

    By PhysicsBurger, February 4, 2012
    • 2 replies
    • 997 views
    • 
    • PhysicsBurger
    • February 5, 2012

20. Conservation of energy/mass

    By MarkE, November 22, 2017
    • 3 replies
    • 997 views
    • 
    • MarkE
    • November 24, 2017

21. Gama Ray Bursts datasets that consist of distance modulus and redshift

    By kosmolog, June 4, 2014
    • 1 reply
    • 996 views
    • 
    • hoola
    • June 5, 2014

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

    By Calebeano, January 18, 2020
    • 3 replies
    • 996 views
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    • Endy0816
    • January 18, 2020

23. Shape of the Universe?

    By Tau Meson, January 9, 2010
    • 3 replies
    • 995 views
    • 
    • ajb
    • January 9, 2010

24. Penrose's CCC

    By QuantumT, October 10, 2020
    • 1 reply
    • 995 views
    • 
    • Markus Hanke
    • October 11, 2020

25. our universe

    By japan rocks/andromeda, March 27, 2010
    • 3 replies
    • 994 views
    • 
    • npts2020
    • March 30, 2010