Astronomy and Cosmology

3709 topics in this forum

1. Gravitational pulses looking for clarification

   By Njwythe, May 23, 2023
   • 11 replies
   • 755 views
   • 
   • Genady
   • May 24, 2023

2. Homopolar motor rotation in Vacuum

   By StoyanNikolov, May 5, 2023
   • 3 replies
   • 365 views
   • 
   • StoyanNikolov
   • May 5, 2023

3. Black Hole week

   By paulsutton, May 2, 2023
   • 0 replies
   • 305 views
   • 
   • paulsutton
   • May 2, 2023

4. The Milky Way has Trapped the Large Magellanic Cloud With its Gravity.

   By paulsutton, April 25, 2023
   • 2 replies
   • 540 views
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   • TheVat
   • April 25, 2023

5. universal history

   By Brainee, April 22, 2023
   • 1 reply
   • 435 views
   • 
   • Genady
   • April 22, 2023

6. Are years getting longer

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

7. Galaxies or black holes

   By Brainee, April 14, 2023
   • 6 replies
   • 502 views
   • 
   • Airbrush
   • April 19, 2023

8. A Query About Books - Specifically Around the Subjects of Supernovae and Stellar Remenants

   By RyanJ, April 3, 2023
   • 2 replies
   • 429 views
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   • Genady
   • April 10, 2023

9. Is the Big Bang theory a complete model of the universe?

   By caryunxwn, January 30, 2023
   • 5 replies
   • 922 views
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   • paulsutton
   • March 11, 2023

10. Has a supernova ever been recorded?

    By gib65, February 25, 2023
    • 6 replies
    • 755 views
    • 
    • Ken Fabian
    • February 27, 2023

11. Flight on an asteroid

    By CrystalMagic, February 19, 2023
    • 0 replies
    • 467 views
    • 
    • CrystalMagic
    • February 19, 2023

12. Methods to Approximate the Rocket Equation with Air Resistances.

    By Flemish, February 14, 2023
    • 3 replies
    • 444 views
    • 
    • sethoflagos
    • February 16, 2023

13. A few Questions about Earths Orbital Speed Around the Sun.

    By TheCuriousMind, February 16, 2023
    • 6 replies
    • 629 views
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    • studiot
    • February 16, 2023

14. Heat received from the sun

    By Saber, February 14, 2023
    • 8 replies
    • 681 views
    • 
    • exchemist
    • February 15, 2023

15. Does the expansion of a quantum system of particles cause the creation of new space? 1 2

    By geordief, December 25, 2022
    • 28 replies
    • 1.5k views
    • 
    • Mordred
    • February 2, 2023

16. Mars magnetic field (split from Mars and the dim sun paradox)

    By CrystalMagic, January 29, 2023
    • 2 replies
    • 492 views
    • 
    • studiot
    • January 30, 2023

17. Are the stars of the constellation stationary?

    By lightforyoou, January 26, 2023
    • 11 replies
    • 979 views
    • 
    • studiot
    • January 27, 2023

18. dark matter question 1 2 3

    By hoola, January 1, 2023
    • 70 replies
    • 3.7k views
    • 
    • Mordred
    • January 27, 2023

19. Are inflation and expansion relativistic theories?

    By geordief, January 23, 2023
    • 3 replies
    • 474 views
    • 
    • Genady
    • January 23, 2023

20. The Sunday Promenade on Titan

    By Gian, January 23, 2023
    • 0 replies
    • 289 views
    • 
    • Gian
    • January 23, 2023

21. Dark Energy

    By Agent Smith, January 18, 2023
    • 17 replies
    • 925 views
    • 
    • Genady
    • January 23, 2023

22. Can we create Micro Climate Craters on Mars by deflecting Comets? Need Peer Review

    By PhotonBytes, January 7, 2023
    • 0 replies
    • 317 views
    • 
    • PhotonBytes
    • January 7, 2023

23. Nature loves spirals

    By studiot, January 5, 2023
    • 6 replies
    • 508 views
    • 
    • Genady
    • January 6, 2023

24. What is the depth of the gravitational potential of the universe?

    By Halc, February 27, 2021
    • 9 replies
    • 1.4k views
    • 
    • Mordred
    • January 4, 2023

25. How does the light from distant stars get to our eyes?

    By gib65, December 31, 2022
    • 24 replies
    • 2.1k views
    • 
    • studiot
    • January 3, 2023