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: 17,395	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: 4,812	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: 8,322	Last Post By Dishmaster November 15th, 2008, 12:28 PM

Meteor impacts Started by skeptic‎, March 9th, 2014 04:34 PM	Replies: 8 Views: 99	Last Post By Schneibster March 10th, 2014, 03:24 PM
Black hole inside a black hole Started by Nic321‎, February 24th, 2014 02:31 AM	Replies: 76 Views: 669	Last Post By umbradiago March 9th, 2014, 05:13 PM
Dark Matter or Primordially Warped Space-Time? Started by DannyBoy1974‎, January 31st, 2009 08:37 AM	Replies: 19 Views: 1,889	Last Post By Strange March 9th, 2014, 08:53 AM
Dark Matter Started by sabodriver17‎, March 8th, 2014 04:22 PM	Replies: 15 Views: 112	Last Post By Daecon March 8th, 2014, 06:08 PM
Dark Matter mystery solved. Started by YellowKazooie2‎, March 8th, 2014 05:43 PM	Replies: 1 Views: 74	Last Post By Daecon March 8th, 2014, 06:07 PM
Gravitation cancelling in curved space? Started by Nic321‎, March 3rd, 2014 01:29 PM	Replies: 18 Views: 184	Last Post By Nic321 March 8th, 2014, 02:00 PM
Is everything really expanding faster the further out we look into space.. or time? Started by daved87‎, February 28th, 2014 03:35 PM	Replies: 14 Views: 253	Last Post By nnunn March 8th, 2014, 04:24 AM
Gravity as "negative" energy? Started by Daecon‎, March 6th, 2014 01:08 AM	Replies: 3 Views: 89	Last Post By Nic321 March 7th, 2014, 02:15 PM
Does the Sun rotate? Started by Daecon‎, March 3rd, 2014 10:42 PM	Replies: 11 Views: 212	Last Post By pyoko March 6th, 2014, 06:16 PM
Moon Gets Whacked? Started by zinjanthropos‎, February 24th, 2014 08:28 PM	Replies: 3 Views: 114	Last Post By dan hunter March 2nd, 2014, 07:23 PM
A question in relation to the positions of the Sun and Moon in the sky. Started by imetheman‎, February 7th, 2014 10:08 AM	Replies: 6 Views: 219	Last Post By dan hunter February 27th, 2014, 06:25 PM
M-theory and the Big Bang Started by Daecon‎, February 24th, 2014 04:54 PM	Replies: 6 Views: 148	Last Post By Daecon February 27th, 2014, 02:29 AM
Holographic universe/black hole Started by Nic321‎, February 26th, 2014 10:34 AM	Replies: 2 Views: 78	Last Post By Nic321 February 26th, 2014, 01:19 PM
How to start the Universe? Started by Headdresser‎, February 12th, 2014 01:45 PM	Replies: 37 Views: 532	Last Post By Dave Lee February 26th, 2014, 05:16 AM
how can we know the age? Started by thestotle‎, February 25th, 2014 01:05 AM	Replies: 5 Views: 142	Last Post By GoldenRatio February 26th, 2014, 02:23 AM
Largest telescope to be built in Hawaii, 98 feet diameter Started by cosmictraveler‎, February 25th, 2014 11:51 AM	Replies: 7 Views: 99	Last Post By GoldenRatio February 25th, 2014, 09:00 PM
Milky Way's thin disk Started by nnunn‎, January 28th, 2014 01:05 PM	Replies: 6 Views: 252	Last Post By dan hunter February 25th, 2014, 04:37 PM
Basic question about stars... Started by biochem:)‎, February 7th, 2014 03:59 PM	Replies: 17 Views: 299	Last Post By jrmonroe February 21st, 2014, 01:05 PM
Location of Earth in the Universe Started by new23d‎, November 15th, 2012 08:16 AM	Replies: 49 Views: 1,043	Last Post By AlexG February 21st, 2014, 12:20 PM
Dark energy and the expanding universe Started by ADD Dave‎, February 17th, 2014 01:22 PM	Replies: 10 Views: 220	Last Post By GoldenRatio February 21st, 2014, 02:34 AM