Physics, Space Science and Theories

1,726 topics in this forum

1. Why is the solar system flat but the planets spheres?

   By teleskopjo, September 23, 2015
   • 5 replies
   • 1.4k views
   • 
   • michael.h.f.wilkinson
   • October 4, 2015

2. S282

   By Ronnie67, July 12, 2015
   • 17 replies
   • 3.1k views
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   • Tony Rodda
   • September 22, 2015

3. Galaxy types

   By mdstuart, September 19, 2015
   • 11 replies
   • 945 views
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   • Macavity
   • September 21, 2015

4. Multiverse on BBC2 Horizon 1 2

   By Smithfire, September 3, 2015
   • 31 replies
   • 3.3k views
   • 
   • Smithfire
   • September 16, 2015

5. Help with consequence of Hubble's law

   By pajacek, September 7, 2015
   • 11 replies
   • 1.5k views
   • 
   • Stu
   • September 8, 2015

6. How early could the radius of the Earth be calculated?

   By spartan45, August 24, 2015
   • 12 replies
   • 2.9k views
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   • spartan45
   • August 31, 2015

7. A Question of Gravity 1 2

   By Nigeyboy, July 30, 2015
   • 28 replies
   • 2.6k views
   • 
   • Tiki
   • August 31, 2015

8. A Cruise over Ceres.

   By barkis, August 20, 2015
   • 2 replies
   • 849 views
   • 
   • spartan45
   • August 24, 2015

9. Are symbiotic stars dwarf novae?

   By ntc, August 22, 2015
   • 3 replies
   • 666 views
   • 
   • ntc
   • August 23, 2015

10. How much were the clocks of Apollo craft affected by space tavel?

    By spartan45, July 31, 2015
    • 15 replies
    • 6.4k views
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    • spartan45
    • August 19, 2015

11. Large Hadron Collider discovers new pentaquark particle

    By bob1957, July 14, 2015
    • 19 replies
    • 1.3k views
    • 
    • Macavity
    • August 16, 2015

12. basic physics question

    By bish, August 12, 2015
    • 20 replies
    • 1.3k views
    • 
    • Dom1961
    • August 15, 2015

13. Parallax data from Gaia

    By Michael-H, August 8, 2015
    • 2 replies
    • 1.4k views
    • 
    • Michael-H
    • August 9, 2015

14. Did Charon give Pluto a 'kiss'?

    By The Admiral, July 21, 2015
    • 2 replies
    • 631 views
    • 
    • Grotemobile
    • July 21, 2015

15. Do magntic poles always relate to rotaion axis?

    By Earl, July 18, 2015
    • 7 replies
    • 863 views
    • 
    • Dave Lloyd
    • July 19, 2015

16. So what would really happen if aliens did make contact? 1 2 3 4

    By Trickystar1, February 18, 2012
    • 88 replies
    • 14.8k views
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    • MAN or ASTROMAN
    • July 17, 2015

17. Distance to the Stars

    By Laurie61, May 25, 2015
    • 14 replies
    • 1.8k views
    • 
    • barkis
    • July 5, 2015

18. New Horizons to Pluto Vid.

    By barkis, June 4, 2015
    • 1 reply
    • 1k views
    • 
    • Naf
    • June 19, 2015

19. M42--a mystery?

    By kalasinman, June 16, 2015
    • 15 replies
    • 1.5k views
    • 
    • acey
    • June 19, 2015

20. age of the universe

    By CedrikG, May 2, 2015
    • 11 replies
    • 1.3k views
    • 
    • Owmuchonomy
    • June 14, 2015

21. hypothetical plant in space question

    By dazed, June 14, 2015
    • 4 replies
    • 691 views
    • 
    • dazed
    • June 14, 2015

22. why all the angles?

    By Earl, June 12, 2015
    • 10 replies
    • 799 views
    • 
    • jnb
    • June 14, 2015

23. Universe expansion 1 2 3

    By CedrikG, May 4, 2015
    • 70 replies
    • 4.6k views
    • 
    • ollypenrice
    • June 13, 2015

24. The force of gravity

    By CedrikG, May 26, 2015
    • 12 replies
    • 1.5k views
    • 
    • stargazerlily
    • June 11, 2015

25. The Hadron Collider back up and running.

    By barkis, June 4, 2015
    • 9 replies
    • 940 views
    • 
    • barkis
    • June 8, 2015