Astronomy and Cosmology

3705 topics in this forum

1. Surviving in a Black Hole

   By GlueOn, May 15, 2018
   • 11 replies
   • 1.7k views
   • 
   • icarus2
   • May 17, 2018

2. What planet is this?

   By mistykasumi, May 12, 2018
   • 8 replies
   • 947 views
   • 
   • Eise
   • May 13, 2018

3. Black Hole Binary Pairs:

   By beecee, May 12, 2018
   • 0 replies
   • 642 views
   • 
   • beecee
   • May 12, 2018

4. swimming on Titan

   By Gian, May 3, 2018
   • 10 replies
   • 1.5k views
   • 
   • Gian
   • May 10, 2018

5. Field Question 1 2 3 4 7

   By MikeAL, May 4, 2018
   • 151 replies
   • 13.5k views
   • 
   • MikeAL
   • May 9, 2018

6. Consciousness as a universal framework

   By Shane Bellone, May 9, 2018
   • 0 replies
   • 574 views
   • 
   • Shane Bellone
   • May 9, 2018

7. explanation of mechanism of moon capturing 1 2

   By Jon Steensen, May 4, 2018
   • 26 replies
   • 2.6k views
   • 
   • Airbrush
   • May 7, 2018

8. A question about Hubble's Law

   By Maartenn100, May 2, 2018
   • 7 replies
   • 1.6k views
   • 
   • Maartenn100
   • May 6, 2018

9. When we see the past through the telescope, why can we see whole galaxies moving away from us as one whole galaxy, while the stars in the front are younger then the stars we see in the back?

   By Maartenn100, May 2, 2018
   • 9 replies
   • 1.3k views
   • 
   • Maartenn100
   • May 2, 2018

10. I Took A Weird Photo during a Solar Eclipse last year

    By Aleman569, April 29, 2018
    • 2 replies
    • 850 views
    • 
    • Eise
    • May 1, 2018

11. Dark matter dark energy conundrum

    By wallflash, April 10, 2017
    • 20 replies
    • 2.9k views
    • 
    • beecee
    • May 1, 2018

12. Stuff in Space

    By Strange, April 10, 2018
    • 9 replies
    • 1.8k views
    • 
    • Strange
    • April 27, 2018

13. Radius of curvature of Spacetime

    By studiot, April 7, 2018
    • 16 replies
    • 1.9k views
    • 
    • studiot
    • April 26, 2018

14. Witnessing a Galactic Pileup:

    By beecee, April 25, 2018
    • 3 replies
    • 1.5k views
    • 
    • beecee
    • April 26, 2018

15. Is There an Eternity?

    By General_Bloodgeon, April 23, 2018
    • 11 replies
    • 1.6k views
    • 
    • General_Bloodgeon
    • April 25, 2018

16. Black holes and dark matter linked?

    By SimpleRick, April 18, 2018
    • 19 replies
    • 2.2k views
    • 
    • MigL
    • April 20, 2018

17. Parallax of the stars

    By sunshinesunshine, April 18, 2018
    • 10 replies
    • 1.1k views
    • 
    • Strange
    • April 18, 2018

18. Lost Planet:

    By beecee, April 17, 2018
    • 2 replies
    • 862 views
    • 
    • Airbrush
    • April 18, 2018

19. Testing General Relativity and Gravity:

    By beecee, April 17, 2018
    • 0 replies
    • 590 views
    • 
    • beecee
    • April 17, 2018

20. Artificial Gravity on the ISS 1 2

    By Airbrush, April 7, 2018
    • 29 replies
    • 2.8k views
    • 
    • Airbrush
    • April 16, 2018

21. Space is the ultimate antecedent 1 2

    By gwb, March 26, 2018
    • 32 replies
    • 3.6k views
    • 
    • Mordred
    • April 13, 2018

22. Basic rule for the Atmospheric Reentry Time of non powered Glider Class vehicles

    By LaurieAG, April 7, 2018
    • 3 replies
    • 841 views
    • 
    • LaurieAG
    • April 11, 2018

23. Handbook for New Actors in Space

    By Phi for All, April 10, 2018
    • 0 replies
    • 958 views
    • 
    • Phi for All
    • April 10, 2018

24. More evidence for Dark Matter:

    By beecee, March 28, 2018
    • 16 replies
    • 2k views
    • 
    • Strange
    • April 9, 2018

25. Astronomers find 72 bright and fast explosions

    By beecee, April 5, 2018
    • 0 replies
    • 582 views
    • 
    • beecee
    • April 5, 2018