Astronomy and Cosmology

3686 topics in this forum

1. Why doesn't a long journey hinder photons?

   By Baby Astronaut, February 5, 2009
   • 1 reply
   • 666 views
   • 
   • Klaynos
   • February 5, 2009

2. Martian "forest"

   By Arch2008, January 14, 2010
   • 0 replies
   • 666 views
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   • Arch2008
   • January 14, 2010

3. Composite "All Spectrum" Telescopes ??

   By Widdekind, April 16, 2010
   • 1 reply
   • 666 views
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   • swansont
   • April 16, 2010

4. Viewing distant galaxies in unprecedented detail

   By beecee, July 10, 2019
   • 1 reply
   • 666 views
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   • Mordred
   • July 11, 2019

5. Black Holes and Penrose's CCC

   By geordief, October 11, 2020
   • 0 replies
   • 666 views
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   • geordief
   • October 11, 2020

6. same dust cloud at different volumes

   By lemur, March 27, 2011
   • 0 replies
   • 665 views
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   • lemur
   • March 27, 2011

7. On the Existence of Black Holes:

   By beecee, November 15, 2018
   • 1 reply
   • 664 views
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   • beecee
   • November 16, 2018

8. Frank Drake (1930 - 2022)

   By toucana, September 3, 2022
   • 1 reply
   • 664 views
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   • Airbrush
   • September 8, 2022

9. astrophotography

   By sddfds, October 7, 2022
   • 1 reply
   • 664 views
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   • swansont
   • October 8, 2022

10. Spacecraft-Asteroid collision

    By ScienceFighter, May 30, 2009
    • 2 replies
    • 663 views
    • 
    • Phi for All
    • May 30, 2009

11. Black Holes and Gaseous Giants:

    By beecee, February 28, 2018
    • 0 replies
    • 663 views
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    • beecee
    • February 28, 2018

12. Age & Size of Closed Cosmos are related ?

    By Widdekind, December 3, 2010
    • 0 replies
    • 660 views
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    • Widdekind
    • December 3, 2010

13. Atmosphere of Venus (split from An absolutely bonkers plan to give Mars an artificial magnetosphere)

    By Bufofrog, November 22, 2021
    • 6 replies
    • 659 views
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    • swansont
    • November 23, 2021

14. Virtual aperture using two telescopes. HOW?

    By netrat, September 18, 2010
    • 0 replies
    • 658 views
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    • netrat
    • September 18, 2010

15. 16 year footage around Milky Way black hole

    By Baby Astronaut, December 11, 2008
    • 1 reply
    • 657 views
    • 
    • granpa
    • December 12, 2008

16. Please delete this post

    By icarus2, March 23, 2022
    • 1 reply
    • 657 views
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    • Phi for All
    • March 23, 2022

17. Space pressure reality (Physical Review Letters)

    By Guest Brian, June 15, 2005
    • 0 replies
    • 655 views
    • 
    • Guest
    • June 15, 2005

18. planet orbit, the Earth?

    By alpha2cen, January 10, 2011
    • 0 replies
    • 655 views
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    • alpha2cen
    • January 10, 2011

19. Why doesn't the resonance of the entire universe experience damping?

    By John Harmonic, September 26, 2018
    • 5 replies
    • 654 views
    • 
    • John Harmonic
    • September 26, 2018

20. New Plasma Structure found

    By Erich, August 12, 2005
    • 0 replies
    • 651 views
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    • Erich
    • August 12, 2005

21. Radio Pulsar / X-ray Binary Link

    By Widdekind, May 24, 2009
    • 1 reply
    • 651 views
    • 
    • Martin
    • May 24, 2009

22. Multiverse (split from Discussable Topics)

    By beecee, June 22, 2019
    • 2 replies
    • 651 views
    • 
    • beecee
    • June 22, 2019

23. First I heard of this! [Gotta have a giggle]

    By beecee, April 13, 2021
    • 1 reply
    • 651 views
    • 
    • beecee
    • April 13, 2021

24. Magnetic lines in space?

    By Fozzie, January 15, 2010
    • 0 replies
    • 650 views
    • 
    • Fozzie
    • January 15, 2010

25. I created this space composition with my VFX software, and wonder if it looks like something known. if yes, what's the name of the phenomenon

    By mtruchon, March 14, 2018
    • 2 replies
    • 650 views
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    • mtruchon
    • March 14, 2018