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: 17,462	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: 4,972	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: 9,135	Last Post By Dishmaster November 15th, 2008, 12:28 PM

Kepler-186f mass and radius Started by pyoko‎, April 17th, 2014 08:49 PM	Replies: 1 Views: 33	Last Post By Janus April 17th, 2014, 10:47 PM
Why is the Moon moving farther away from the Earth? Started by dan hunter‎, April 17th, 2014 03:00 AM	Replies: 16 Views: 141	Last Post By Janus April 17th, 2014, 03:28 PM
Bigcrunch theory again, help me understand why scientists believe the universe is finite. Started by Raziell‎, April 20th, 2012 08:24 AM	Replies: 19 Views: 780	Last Post By AlexG April 17th, 2014, 01:51 PM
Universe: Finite or Infinite? Started by TheGoneCase‎, February 9th, 2014 04:19 PM 2 Pages • 1 2	Replies: 151 Views: 1,529	Last Post By adelady April 16th, 2014, 11:22 AM
How to start the Universe? Started by Headdresser‎, February 12th, 2014 01:45 PM	Replies: 64 Views: 981	Last Post By Markus Hanke April 16th, 2014, 04:27 AM
Questions about Birkeland Currents? Started by dan hunter‎, April 14th, 2014 10:36 PM	Replies: 6 Views: 67	Last Post By dan hunter April 16th, 2014, 12:41 AM
Publication question Started by Eagle9‎, March 26th, 2011 06:15 AM	Replies: 7 Views: 682	Last Post By SowZ37 April 15th, 2014, 05:10 PM
The density of the universe. Started by geordief‎, April 15th, 2014 05:17 AM	Replies: 40 Views: 238	Last Post By SowZ37 April 15th, 2014, 04:46 PM
Moved: Gravity upside down Started by H Sapien‎, April 15th, 2014 01:28 PM	Replies: - Views: -	Last Post By Strange April 15th, 2014, 03:06 PM
Black line crosses moon Started by MoonWolf‎, March 12th, 2009 09:41 AM 2 Pages • 1 2	Replies: 144 Views: 17,018	Last Post By astromark April 15th, 2014, 12:27 AM
Are areas of the universe receding from each other at faster than light speeds? Started by geordief‎, April 13th, 2014 04:33 AM	Replies: 5 Views: 155	Last Post By geordief April 13th, 2014, 05:14 PM
I NEED someone good at astrology for this. Started by That_Inquisitive_Guy‎, April 10th, 2014 11:40 PM	Replies: 4 Views: 122	Last Post By Strange April 11th, 2014, 02:14 AM
Picture of Earth and Moon from Mars Started by Chucknorium‎, April 7th, 2014 09:45 AM	Replies: 7 Views: 220	Last Post By Chucknorium April 8th, 2014, 11:21 AM
How to blow up a Star? Started by Estheria Quintessimo‎, March 27th, 2014 10:37 PM	Replies: 6 Views: 172	Last Post By Janus April 5th, 2014, 11:58 AM
What is Space? Started by icewendigo‎, March 27th, 2014 08:40 AM	Replies: 50 Views: 451	Last Post By Cogito Ergo Sum April 3rd, 2014, 12:13 PM
Question about: Expansion of the Universe. Started by Estheria Quintessimo‎, March 27th, 2014 11:13 PM 2 Pages • 1 2	Replies: 152 Views: 1,082	Last Post By adelady April 2nd, 2014, 09:23 PM
Centre of Universe Started by Zwirko‎, December 11th, 2011 06:44 AM 3 Pages • 1 2 3	Replies: 264 Views: 21,365	Last Post By John Galt April 1st, 2014, 04:31 AM
Moved: Black hole at the center of the universe !!! Started by Deep Thoughts‎, April 1st, 2014 02:41 AM	Replies: - Views: -	Last Post By John Galt April 1st, 2014, 04:03 AM
warning for supernova near earth ? Started by Chucknorium‎, March 28th, 2014 09:49 AM	Replies: 5 Views: 174	Last Post By Chucknorium March 30th, 2014, 11:01 PM
any warning if GRB aimed directly at earth ? Started by Chucknorium‎, March 28th, 2014 09:44 AM	Replies: 11 Views: 150	Last Post By Chucknorium March 29th, 2014, 07:26 PM