Astronomy and Cosmology

3690 topics in this forum

1. Black Hole-Dark Energy Thruster?

   By Jack Jectivus, May 31, 2020
   • 6 replies
   • 1.2k views
   • 
   • Janus
   • May 31, 2020

2. First image of massive black hole

   By Bmpbmp1975, March 30, 2020
   • 3 replies
   • 1.1k views
   • 
   • Airbrush
   • May 29, 2020

3. kinetic energy and black hole formation

   By rjbeery, April 29, 2020
   • 24 replies
   • 2.4k views
   • 
   • Markus Hanke
   • May 16, 2020

4. Is there an advantage to making ones own telescope

   By Delberty, May 13, 2020
   • 6 replies
   • 1.2k views
   • 
   • Danijel Gorupec
   • May 14, 2020

5. Expansion different in different directions 1 2 3 4 6

   By Bmpbmp1975, April 8, 2020
   • 125 replies
   • 356.5k views
   • 
   • swansont
   • April 27, 2020

6. Brian Cox, gotta love him

   By Bmpbmp1975, April 26, 2020
   • 3 replies
   • 1.2k views
   • 
   • swansont
   • April 26, 2020

7. Question about merging supermassive black holes 1 2

   By Bmpbmp1975, April 19, 2020
   • 28 replies
   • 13.3k views
   • 
   • Strange
   • April 25, 2020

8. help with gamma ray burst formula.

   By 𝐠𝛂𝕞𝕞𝛂 β𝐔𝙍𝐒𝐓, April 22, 2020
   • 1 reply
   • 915 views
   • 
   • Strange
   • April 22, 2020

9. Fomalhaut

   By Bmpbmp1975, April 21, 2020
   • 3 replies
   • 1.1k views
   • 
   • Strange
   • April 21, 2020

10. Planet Nine

    By Bmpbmp1975, April 20, 2020
    • 9 replies
    • 1.3k views
    • 
    • swansont
    • April 20, 2020

11. Alright who stole the stars

    By Bmpbmp1975, April 12, 2020
    • 21 replies
    • 1.7k views
    • 
    • taeto
    • April 16, 2020

12. Cold spot and parallel universe 1 2 3

    By Bmpbmp1975, April 10, 2020
    • 55 replies
    • 7.7k views
    • 
    • Bmpbmp1975
    • April 15, 2020

13. Wierd paper about. Neutrinos 1 2 3

    By Bmpbmp1975, April 13, 2020
    • 61 replies
    • 4.6k views
    • 
    • Strange
    • April 14, 2020

14. Hawking last work

    By Bmpbmp1975, April 11, 2020
    • 3 replies
    • 959 views
    • 
    • Strange
    • April 11, 2020

15. Alive and dead in the cosmos

    By ProximaCentauri, April 8, 2020
    • 8 replies
    • 1k views
    • 
    • Mordred
    • April 9, 2020

16. New age of universe? 1 2

    By Bmpbmp1975, April 6, 2020
    • 35 replies
    • 2.9k views
    • 
    • Mordred
    • April 8, 2020

17. More Questions About Hawking Radiation

    By Airbrush, April 7, 2020
    • 3 replies
    • 1k views
    • 
    • MigL
    • April 7, 2020

18. Hawking radiation

    By swansont, April 6, 2020
    • 11 replies
    • 1.9k views
    • 
    • MigL
    • April 6, 2020

19. April 30 asteroid 1 2

    By Bmpbmp1975, March 28, 2020
    • 34 replies
    • 8.8k views
    • 
    • swansont
    • April 1, 2020

20. When jupiter and saturn get near earth...

    By Lan Todak, March 31, 2020
    • 2 replies
    • 838 views
    • 
    • pzkpfw
    • March 31, 2020

21. Biggest Bang Since Big Bang

    By Airbrush, March 8, 2020
    • 1 reply
    • 932 views
    • 
    • Airbrush
    • March 26, 2020

22. Bob Lazar, Area 51, & Flying Saucers

    By Airbrush, March 16, 2020
    • 1 reply
    • 975 views
    • 
    • Curious layman
    • March 17, 2020

23. Astronomers will be able to image Earth-like planets by 2025

    By alfa015, February 22, 2020
    • 3 replies
    • 867 views
    • 
    • Curious layman
    • March 13, 2020

24. Thomson opacity (split from I finally found an accurate article on the speed of universal expansion) 1 2

    By TEFLing, March 1, 2020
    • 32 replies
    • 16.6k views
    • 
    • Mordred
    • March 11, 2020

25. Could a magnet affect solar wind?

    By Daniel M, February 26, 2020
    • 6 replies
    • 1.1k views
    • 
    • Daniel M
    • March 9, 2020