Physics, Space Science and Theories

1,705 topics in this forum

1. Identified possible origin of the WOW signal

   By alberto91, November 20, 2020
   • 3 replies
   • 611 views
   • 
   • alpal
   • November 27, 2020

2. Astro Biscuit's latest youtube vid is mind blowing

   By AstroRookie, November 25, 2020
   • 3 replies
   • 977 views
   • 
   • AstroRookie
   • November 26, 2020

3. Density of light from stars

   By Viktiste, September 15, 2020
   • 16 replies
   • 930 views
   • 
   • andrew s
   • November 26, 2020

4. Can you use Pixinsight for Exoplanet transits

   By blinky, November 24, 2020
   • 6 replies
   • 696 views
   • 
   • blinky
   • November 24, 2020

5. The next big break through in our understanding of the Universe 1 2

   By Chris, November 21, 2020
   • 34 replies
   • 1.4k views
   • 
   • andrew s
   • November 22, 2020

6. How does the laser rangefinder work?

   By vlaiv, November 11, 2020
   • 3 replies
   • 367 views
   • 
   • vlaiv
   • November 11, 2020

7. The Bare Minimum Number of Martian Settlers? 110!

   By Macavity, September 22, 2020
   • 6 replies
   • 600 views
   • 
   • Paul M
   • November 2, 2020

8. Mars teeming with Life?!

   By Drifter, October 31, 2020
   • 1 reply
   • 398 views
   • 
   • Drifter
   • November 2, 2020

9. Mathematical Possibility

   By Sunshine, September 27, 2020
   • 9 replies
   • 601 views
   • 
   • robin_astro
   • November 2, 2020

10. Betelgeuse, closer and smaller.

    By Synchronicity, October 27, 2020
    • 0 replies
    • 367 views
    • 
    • Synchronicity
    • October 27, 2020

11. Question regarding red giants

    By Regiomontanud, October 20, 2020
    • 7 replies
    • 597 views
    • 
    • Gfamily
    • October 21, 2020

12. Panspermia 1 2

    By Robindonne, September 20, 2020
    • 36 replies
    • 1.4k views
    • 
    • robin_astro
    • October 15, 2020

13. Nature of Gravity Itself

    By Sunshine, September 27, 2020
    • 8 replies
    • 776 views
    • 
    • carastro
    • October 14, 2020

14. Halton Arp picture problem 1 2

    By Marvin Jenkins, September 23, 2020
    • 35 replies
    • 1.4k views
    • 
    • Marvin Jenkins
    • October 12, 2020

15. Rate of shrinkage of the Martian Poles?

    By Drifter, September 23, 2020
    • 10 replies
    • 644 views
    • 
    • Drifter
    • October 12, 2020

16. Parallax, the limit.

    By Marvin Jenkins, September 30, 2020
    • 6 replies
    • 560 views
    • 
    • robin_astro
    • October 2, 2020

17. Many worlds busted? 1 2

    By vlaiv, September 30, 2020
    • 39 replies
    • 1.1k views
    • 
    • vlaiv
    • October 1, 2020

18. LSST - The Large Synoptic Survey Telescope

    By Synchronicity, September 25, 2020
    • 1 reply
    • 354 views
    • 
    • robin_astro
    • September 27, 2020

19. 5th Gas Giant in the Solar System's distant past?

    By Persony Person, September 15, 2020
    • 2 replies
    • 405 views
    • 
    • Persony Person
    • September 16, 2020

20. Time to Fall in a Plunge Orbit

    By David Sims, September 14, 2020
    • 0 replies
    • 357 views
    • 
    • David Sims
    • September 14, 2020

21. A Determination of a Preliminary Orbit from Four Observations

    By David Sims, September 14, 2020
    • 0 replies
    • 307 views
    • 
    • David Sims
    • September 14, 2020

22. Stellar Parallax

    By Anakin Skywalker, June 15, 2020
    • 12 replies
    • 1.2k views
    • 
    • Anakin Skywalker
    • August 31, 2020

23. measuring stellar distance for the intellectually challenged

    By asset189, July 15, 2014
    • 10 replies
    • 1.3k views
    • 
    • Tenor Viol
    • August 31, 2020

24. Looking for a book on Stellar Evolution

    By Starwatcher2001, August 13, 2020
    • 13 replies
    • 1.1k views
    • 
    • Synchronicity
    • August 26, 2020

25. Is Interstellar Travel Possible? 1 2

    By alberto91, August 21, 2020
    • 40 replies
    • 1.8k views
    • 
    • Rusted
    • August 25, 2020