Astronomy and Cosmology

3705 topics in this forum

1. Dwarf Planet Ceres...

   By Orion1, August 31, 2015
   • 4 replies
   • 1.2k views
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   • Janus
   • November 2, 2017

2. LIGO Gravity waves 1 2

   By reerer, October 22, 2017
   • 45 replies
   • 4k views
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   • Strange
   • October 31, 2017

3. Astronomy XXX

   By reerer, October 26, 2017
   • 22 replies
   • 3.3k views
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   • hypervalent_iodine
   • October 31, 2017

4. Black Hole Collisions

   By geordief, October 27, 2017
   • 7 replies
   • 955 views
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   • Strange
   • October 28, 2017

5. Estimate the size of our universe

   By Dream-Runner, October 17, 2017
   • 8 replies
   • 1.2k views
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   • Strange
   • October 17, 2017

6. Black hole mergers (split from LIGO/VIRGO)

   By geordief, October 17, 2017
   • 12 replies
   • 1.1k views
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   • Strange
   • October 17, 2017

7. Microwave Background Radiation???

   By Cosmo_Ken, October 15, 2017
   • 6 replies
   • 1k views
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   • Mordred
   • October 16, 2017

8. Undetected asteroids and Earth

   By Cerebus06, October 4, 2017
   • 7 replies
   • 1.9k views
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   • dimreepr
   • October 16, 2017

9. Are dark matter and dark energy related?

   By Strange, December 27, 2016
   • 13 replies
   • 3.4k views
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   • Vmedvil
   • October 16, 2017

10. Why do all cosmological models assume time flow is the same for everyone in the universe?

    By Aki Tendo, October 15, 2017
    • 6 replies
    • 968 views
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    • Mordred
    • October 15, 2017

11. Missing Matter Found:

    By beecee, October 10, 2017
    • 9 replies
    • 1.3k views
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    • koti
    • October 12, 2017

12. Hulse/Taylor Binary Pulsar System and Gravitational Radiation:

    By beecee, October 8, 2017
    • 4 replies
    • 776 views
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    • beecee
    • October 9, 2017

13. NASA Aftermath of the Chelyabinsk Meteor

    By Sensei, October 8, 2017
    • 0 replies
    • 741 views
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    • Sensei
    • October 8, 2017

14. How singularity in black hole works?

    By Eren, October 6, 2017
    • 5 replies
    • 1.2k views
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    • Endy0816
    • October 7, 2017

15. Is dark energy causing different acceleration speeds?

    By MarkE, September 6, 2017
    • 23 replies
    • 1.6k views
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    • Eise
    • October 5, 2017

16. Spacetime and Matter Energy: 1 2

    By beecee, October 1, 2017
    • 30 replies
    • 2.5k views
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    • beecee
    • October 3, 2017

17. How Does Mercury Really Look Like?

    By Orcus, October 2, 2017
    • 3 replies
    • 3.1k views
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    • Chopsticks
    • October 3, 2017

18. Cosmocalc now good on SFN

    By Mordred, October 3, 2017
    • 0 replies
    • 677 views
    • 
    • Mordred
    • October 3, 2017

19. Black Holes 1 2

    By Paritosh Sontake, September 12, 2017
    • 44 replies
    • 3.9k views
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    • Dubbelosix
    • September 30, 2017

20. Big Bang not an instance of something from nothing? 1 2 3

    By Alfred001, July 26, 2017
    • 64 replies
    • 7.3k views
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    • Mordred
    • September 30, 2017

21. Big Bang evidence discarded ... Not

    By Strange, September 16, 2017
    • 6 replies
    • 1.2k views
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    • Dubbelosix
    • September 28, 2017

22. A planet made of humans

    By Encryptor, September 27, 2017
    • 6 replies
    • 1.4k views
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    • Encryptor
    • September 28, 2017

23. Value of an Asteroid

    By Airbrush, September 15, 2017
    • 21 replies
    • 2.6k views
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    • Enthalpy
    • September 26, 2017

24. Failed supernova in NGC 6946

    By DanTrentfield, May 31, 2017
    • 13 replies
    • 2.5k views
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    • DanTrentfield
    • September 24, 2017

25. Lack of magnetic field on Mars

    By Silvestru, September 13, 2017
    • 6 replies
    • 1.6k views
    • 
    • swansont
    • September 22, 2017