Forum: Astronomy & Cosmology

The scientific study of matter in outer space and the astrophysical study of the history, structure, and constituent dynamics of the universe..

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Sticky: Interesting astronomical events and observing tips Started by ricci70, October 20th, 2008 05:23 AM 2 Pages • 1 2	Replies: 129 Views: 22,918	Last Post By ricci70 November 2nd, 2013, 09:36 AM
Sticky: The basis of modern cosmology Started by DrRocket, January 4th, 2011 01:05 AM	Replies: 25 Views: 7,538	Last Post By Dishmaster September 20th, 2011, 06:34 PM
Sticky: Rules on homework help - READ THIS BEFORE POSTING OR HELPING Started by Dishmaster, November 15th, 2008 01:28 PM	Replies: 0 Views: 19,383	Last Post By Dishmaster November 15th, 2008, 01:28 PM

Us shrinking or space expanding? Started by PetTastic, November 15th, 2011 06:07 AM 3 Pages • 1 2 3	Replies: 281 Views: 8,670	Last Post By PetTastic March 16th, 2012, 07:29 PM
The Sun is expanding, or are we moving closer? Started by theorist, February 17th, 2013 10:29 PM 3 Pages • 1 2 3	Replies: 279 Views: 3,695	Last Post By SciFi-Real March 6th, 2013, 03:48 AM
Centre of Universe Started by Zwirko, December 11th, 2011 07:44 AM 3 Pages • 1 2 3	Replies: 264 Views: 23,081	Last Post By John Galt April 1st, 2014, 05:31 AM
Another Brazen Attack Against the Big Bang!!! Started by kojax, November 22nd, 2007 12:11 PM 3 Pages • 1 2 3	Replies: 241 Views: 20,867	Last Post By jackson33 February 27th, 2008, 01:11 PM
What is outside of our universe? Vacuum? Started by starnamer, July 2nd, 2005 12:22 PM 3 Pages • 1 2 3	Replies: 233 Views: 24,361	Last Post By Astrolight April 30th, 2010, 12:42 PM
Mystery of the moon... Started by ashwinvinoo, October 25th, 2013 08:30 AM 3 Pages • 1 2 3	Replies: 206 Views: 2,985	Last Post By Robittybob1 November 22nd, 2013, 08:36 PM
Why is the Big Bang Theory better than Steady State? Started by kojax, July 2nd, 2012 08:55 AM 3 Pages • 1 2 3	Replies: 203 Views: 10,707	Last Post By kojax July 31st, 2012, 01:00 PM
How to make a Universe out of Nothing. You decide. Started by marbor22, August 17th, 2013 11:03 AM 2 Pages • 1 2	Replies: 197 Views: 3,800	Last Post By Hill Billy Holmes November 18th, 2013, 08:04 AM
universe is here all along Started by xenobiology, February 5th, 2009 11:30 AM 2 Pages • 1 2	Replies: 195 Views: 9,609	Last Post By Cyberia March 24th, 2009, 08:38 AM
So who believes in the big bang theory? Started by (In)Sanity, October 23rd, 2004 03:46 PM 2 Pages • 1 2	Replies: 186 Views: 17,910	Last Post By Mike NS June 18th, 2007, 10:21 AM
Is the speed of light really a constant? Started by ultimatesceptic, August 2nd, 2014 05:20 PM 2 Pages • 1 2	Replies: 173 Views: 4,168	Last Post By bangstrom August 24th, 2014, 03:22 PM
Moved: measuring longitude without clock Started by luxtpm, March 11th, 2012 12:06 PM	Replies: - Views: -
Evolution of the Universe Started by sridharanr, September 29th, 2009 05:40 AM 2 Pages • 1 2	Replies: 159 Views: 16,377	Last Post By sridharanr January 20th, 2011, 11:59 AM
Universe: Finite or Infinite? Started by TheGoneCase, February 9th, 2014 05:19 PM 2 Pages • 1 2	Replies: 157 Views: 3,537	Last Post By PhysBang May 10th, 2014, 10:29 AM
Black line crosses moon Started by MoonWolf, March 12th, 2009 10:41 AM 2 Pages • 1 2	Replies: 152 Views: 25,494	Last Post By John Galt September 19th, 2014, 12:10 PM
Question about: Expansion of the Universe. Started by Estheria Quintessimo, March 28th, 2014 12:13 AM 2 Pages • 1 2	Replies: 152 Views: 1,593	Last Post By adelady April 2nd, 2014, 10:23 PM
My problems with infinity, the multi-verse & current scientific understanding. Started by GoldenRatio, December 20th, 2013 12:04 AM 2 Pages • 1 2	Replies: 146 Views: 2,876	Last Post By YangYin February 17th, 2014, 02:51 AM
Physics laws, since Universe began? Started by creation, December 2nd, 2007 04:44 AM 2 Pages • 1 2	Replies: 145 Views: 13,546	Last Post By creation January 6th, 2008, 07:37 AM
Are we living inside a black hole? Started by Sealeaf, September 7th, 2013 11:27 PM 2 Pages • 1 2	Replies: 143 Views: 2,455	Last Post By Hill Billy Holmes November 24th, 2013, 09:16 AM
The Big Question Started by Mike NS, December 31st, 2006 08:14 AM 2 Pages • 1 2	Replies: 142 Views: 8,734	Last Post By Zelos March 4th, 2007, 01:44 PM