Astronomy and Cosmology

3546 topics in this forum

1. Astronomy links 1 2 3 4 5

   By Martin, May 24, 2004
   • 105 replies
   • 93.1k views
   • 
   • swansont
   • June 25

2. Cosmological Principle 1 2 3

   By Mordred, May 30, 2015
   • 52 replies
   • 30.4k views
   • 
   • michel123456
   • June 22, 2020

3. Cosmo Basics

   By Martin, October 19, 2008
   • 13 replies
   • 25.5k views
   • 
   • swansont
   • August 3, 2018

4. Using BOINC / seti@home?

   By Sayonara, August 29, 2010
   • 10 replies
   • 18.9k views
   • 
   • Altruist1
   • March 26, 2016

5. If the sun were to go red giant wouldn't it cause all planets to move as well?

   By inbreeding, September 14
   • 8 replies
   • 180 views
   • 
   • Markus Hanke
   • September 14

6. Could the real size of the universe be infinite? 1 2 3

   By Strange Me, July 7
   • 57 replies
   • 1.6k views
   • 
   • Airbrush
   • September 12
7. Has anyone

   Topic was moved to forum Speculations

8. Lorentz invariant gravity (split from Is Gravity a Force?)

   By SergUpstart, September 1
   • 1 reply
   • 93 views
   • 
   • swansont
   • September 1

9. Redshifted Light

   By Muster Mark, August 31
   • 1 reply
   • 140 views
   • 
   • SergUpstart
   • August 31

10. What kind of element could never be naturally found in a star?

    By Maximum7, August 30
    • 2 replies
    • 179 views
    • 
    • swansont
    • August 30

11. What is correct calculation for Moon's brightness?

    By Jurassic Park, August 23
    • 4 replies
    • 197 views
    • 
    • swansont
    • August 24

12. Are their fossils on mars?

    By sta895, July 9
    • 8 replies
    • 359 views
    • 
    • Country Boy
    • August 23

13. Steelworks of Saturn

    By Gian, August 12
    • 13 replies
    • 392 views
    • 
    • Airbrush
    • August 16

14. Antimatter

    By Cosmicus, August 13
    • 7 replies
    • 242 views
    • 
    • joigus
    • August 13

15. Musing About Topology and Implications

    By Caldrail, August 10
    • 0 replies
    • 116 views
    • 
    • Caldrail
    • August 10

16. Questions: differences between M-theory & Multiverse?

    By storyteller, August 6
    • 9 replies
    • 407 views
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    • SergUpstart
    • August 7

17. Relativity with regard to CMBR and galaxy types 1 2

    By MarkE, July 21
    • 26 replies
    • 877 views
    • 
    • beecee
    • August 6

18. Moon Landing 360

    By Endy0816, August 5
    • 1 reply
    • 156 views
    • 
    • joigus
    • August 5

19. Do you truly believe modern scientists have written the end of this story? 1 2

    By OdinSon2k11, June 6
    • 41 replies
    • 1.3k views
    • 
    • Endy0816
    • August 3

20. Spacetime from a different perspective

    By PakoThePlatypus, July 20
    • 3 replies
    • 265 views
    • 
    • Intoscience
    • July 21

21. Friedmann Equations connection to Einstein’s GR Field Equations...explain

    By storyteller, July 11
    • 8 replies
    • 401 views
    • 
    • studiot
    • July 12

22. Bioreactor for Mars Base Power

    By DeepSeaBase, July 7
    • 4 replies
    • 356 views
    • 
    • Ken Fabian
    • July 10

23. These are questions i NEED to know the answers to

    By sta895, July 9
    • 2 replies
    • 300 views
    • 
    • beecee
    • July 9

24. Cosmic Microwave Background disprove 'Big Bang'

    By george909, March 29
    • 9 replies
    • 674 views
    • 
    • swansont
    • July 1

25. Does dark energy obey the inverse-square law?

    By MarkE, June 28
    • 23 replies
    • 441 views
    • 
    • swansont
    • June 29