Astronomy and Cosmology

3686 topics in this forum

1. Inertia forces in the rotating frame (then rotation rate depends on the radius)

   By valwebnik, September 5, 2013
   • 1 reply
   • 685 views
   • 
   • swansont
   • September 5, 2013

2. STS-124 L-1 Mission Update Webcast

   By kscvideos, June 3, 2008
   • 0 replies
   • 684 views
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   • kscvideos
   • June 3, 2008

3. Where no man has gone before

   By Gian, April 3, 2022
   • 2 replies
   • 683 views
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   • Genady
   • April 3, 2022

4. What Makes the E3 Comet Green?

   By exchemist, February 4, 2023
   • 7 replies
   • 683 views
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   • TheVat
   • September 8, 2023

5. I really need your help with some calculations 1 2

   By tmdarkmatter, March 17
   • 28 replies
   • 683 views
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   • tmdarkmatter
   • March 23

6. Dark Matter and Suspiciously Warm Planets:

   By beecee, May 4, 2021
   • 1 reply
   • 682 views
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   • beecee
   • May 5, 2021

7. Black hole spin

   By Moontanman, November 20, 2018
   • 8 replies
   • 680 views
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   • beecee
   • November 20, 2018

8. FYI The telescope

   By Arch2008, October 12, 2008
   • 0 replies
   • 679 views
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   • Arch2008
   • October 12, 2008

9. cosmos-crossing photons vs. quantum foam ?

   By Widdekind, April 14, 2011
   • 0 replies
   • 679 views
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   • Widdekind
   • April 14, 2011

10. Are years getting longer

    By Saber, April 12, 2023
    • 7 replies
    • 679 views
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    • swansont
    • April 19, 2023

11. Spacecraft that can be used for microgravity experiments

    By bear33, January 20, 2021
    • 0 replies
    • 678 views
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    • bear33
    • January 20, 2021

12. The Greatest Books in Astronomy?

    By ExploreScience, February 5, 2011
    • 1 reply
    • 677 views
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    • IM Egdall
    • February 5, 2011

13. how many dead stars

    By jatmacha, August 24, 2012
    • 0 replies
    • 677 views
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    • jatmacha
    • August 24, 2012

14. Simple alternative to Dark Energy

    By john hunter, November 5, 2009
    • 0 replies
    • 673 views
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    • john hunter
    • November 5, 2009

15. Flower Constellation

    By hash, December 11, 2010
    • 0 replies
    • 673 views
    • 
    • hash
    • December 11, 2010

16. Animation of the Gamma Sky (what GLAST will see)

    By Martin, May 31, 2006
    • 0 replies
    • 672 views
    • 
    • Martin
    • May 31, 2006

17. Lunar impact:

    By Jacques, June 11, 2009
    • 0 replies
    • 672 views
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    • Jacques
    • June 11, 2009

18. Photon Fueled Cosmic Acceleration

    By QuantumT, February 16, 2019
    • 3 replies
    • 671 views
    • 
    • swansont
    • February 17, 2019

19. Yet an other look at, how things might work.

    By Simpleton, March 30, 2010
    • 0 replies
    • 670 views
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    • Simpleton
    • March 30, 2010

20. First stars from collision-triggered collapses ?

    By Widdekind, October 4, 2011
    • 1 reply
    • 670 views
    • 
    • Widdekind
    • October 9, 2011

21. Dark Energy

    By geordief, July 13, 2019
    • 1 reply
    • 670 views
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    • Strange
    • July 13, 2019

22. Galactic formation

    By dust hurricane, April 23, 2012
    • 1 reply
    • 668 views
    • 
    • Airbrush
    • April 23, 2012

23. the abyss

    By japan rocks/andromeda, March 28, 2010
    • 0 replies
    • 667 views
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    • japan rocks/andromeda
    • March 28, 2010

24. Furthest "cloaked BH" found:

    By beecee, August 8, 2019
    • 0 replies
    • 667 views
    • 
    • beecee
    • August 8, 2019

25. How much of Einstein Online have you read?

    By Martin, October 23, 2008
    • 2 replies
    • 666 views
    • 
    • Martin
    • October 23, 2008