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 04:23 AM 2 Pages • 1 2	Replies: 129 Views: 24,796	Last Post By ricci70 November 2nd, 2013, 08:36 AM
Sticky: The basis of modern cosmology Started by DrRocket, January 4th, 2011 12:05 AM	Replies: 25 Views: 8,388	Last Post By Dishmaster September 20th, 2011, 05:34 PM
Sticky: Rules on homework help - READ THIS BEFORE POSTING OR HELPING Started by Dishmaster, November 15th, 2008 12:28 PM	Replies: 0 Views: 20,085	Last Post By Dishmaster November 15th, 2008, 12:28 PM

Us shrinking or space expanding? Started by PetTastic, November 15th, 2011 05:07 AM 3 Pages • 1 2 3	Replies: 281 Views: 9,003	Last Post By PetTastic March 16th, 2012, 06:29 PM
The Sun is expanding, or are we moving closer? Started by theorist, February 17th, 2013 09:29 PM 3 Pages • 1 2 3	Replies: 279 Views: 4,475	Last Post By SciFi-Real March 6th, 2013, 02:48 AM
Centre of Universe Started by Zwirko, December 11th, 2011 06:44 AM 3 Pages • 1 2 3	Replies: 264 Views: 23,562	Last Post By John Galt April 1st, 2014, 04:31 AM
Another Brazen Attack Against the Big Bang!!! Started by kojax, November 22nd, 2007 11:11 AM 3 Pages • 1 2 3	Replies: 241 Views: 21,267	Last Post By jackson33 February 27th, 2008, 12:11 PM
What is outside of our universe? Vacuum? Started by starnamer, July 2nd, 2005 11:22 AM 3 Pages • 1 2 3	Replies: 233 Views: 24,688	Last Post By Astrolight April 30th, 2010, 11:42 AM
Mystery of the moon... Started by ashwinvinoo, October 25th, 2013 07:30 AM 3 Pages • 1 2 3	Replies: 206 Views: 3,200	Last Post By Robittybob1 November 22nd, 2013, 07:36 PM
Why is the Big Bang Theory better than Steady State? Started by kojax, July 2nd, 2012 07:55 AM 3 Pages • 1 2 3	Replies: 203 Views: 11,076	Last Post By kojax July 31st, 2012, 12:00 PM
How to make a Universe out of Nothing. You decide. Started by marbor22, August 17th, 2013 10:03 AM 2 Pages • 1 2	Replies: 197 Views: 5,568	Last Post By Hill Billy Holmes November 18th, 2013, 07:04 AM
universe is here all along Started by xenobiology, February 5th, 2009 10:30 AM 2 Pages • 1 2	Replies: 195 Views: 9,722	Last Post By Cyberia March 24th, 2009, 07:38 AM
So who believes in the big bang theory? Started by (In)Sanity, October 23rd, 2004 02:46 PM 2 Pages • 1 2	Replies: 186 Views: 18,057	Last Post By Mike NS June 18th, 2007, 09:21 AM
Is the speed of light really a constant? Started by ultimatesceptic, August 2nd, 2014 04:20 PM 2 Pages • 1 2	Replies: 173 Views: 4,567	Last Post By bangstrom August 24th, 2014, 02:22 PM
Moved: measuring longitude without clock Started by luxtpm, March 11th, 2012 11:06 AM	Replies: - Views: -
Evolution of the Universe Started by sridharanr, September 29th, 2009 04:40 AM 2 Pages • 1 2	Replies: 159 Views: 16,577	Last Post By sridharanr January 20th, 2011, 10:59 AM
Universe: Finite or Infinite? Started by TheGoneCase, February 9th, 2014 04:19 PM 2 Pages • 1 2	Replies: 157 Views: 4,123	Last Post By PhysBang May 10th, 2014, 09:29 AM
Black line crosses moon Started by MoonWolf, March 12th, 2009 09:41 AM 2 Pages • 1 2	Replies: 152 Views: 27,158	Last Post By John Galt September 19th, 2014, 11:10 AM
Question about: Expansion of the Universe. Started by Estheria Quintessimo, March 27th, 2014 11:13 PM 2 Pages • 1 2	Replies: 152 Views: 1,755	Last Post By adelady April 2nd, 2014, 09:23 PM
My problems with infinity, the multi-verse & current scientific understanding. Started by GoldenRatio, December 19th, 2013 11:04 PM 2 Pages • 1 2	Replies: 146 Views: 3,027	Last Post By YangYin February 17th, 2014, 01:51 AM
Physics laws, since Universe began? Started by creation, December 2nd, 2007 03:44 AM 2 Pages • 1 2	Replies: 145 Views: 13,760	Last Post By creation January 6th, 2008, 06:37 AM
Are we living inside a black hole? Started by Sealeaf, September 7th, 2013 10:27 PM 2 Pages • 1 2	Replies: 143 Views: 2,716	Last Post By Hill Billy Holmes November 24th, 2013, 08:16 AM
The Big Question Started by Mike NS, December 31st, 2006 07:14 AM 2 Pages • 1 2	Replies: 142 Views: 8,839	Last Post By Zelos March 4th, 2007, 12:44 PM