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: 18,084	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: 5,469	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: 20,104	Last Post By Dishmaster November 15th, 2008, 01:28 PM

Star light, an expanding universe, and peering backwards in time? Started by skippy, November 5th, 2011 01:11 PM	Replies: 4 Views: 958	Last Post By Cogito Ergo Sum January 30th, 2015, 10:31 AM
Spiral Galaxies Started by thomma, January 25th, 2015 03:01 PM	Replies: 7 Views: 180	Last Post By Strange January 27th, 2015, 03:11 PM
Double planet systems Started by Sealeaf, January 26th, 2015 01:46 AM	Replies: 4 Views: 104	Last Post By Sealeaf January 27th, 2015, 07:07 AM
Space farms Started by skeptic, January 1st, 2015 11:04 PM	Replies: 23 Views: 521	Last Post By whypie January 24th, 2015, 10:17 AM
Catalyst: 29/8/'13 Started by RonPrice, August 29th, 2013 09:56 AM	Replies: 2 Views: 338	Last Post By RonPrice January 20th, 2015, 03:49 AM
Question about speed of movement. Started by marshallj, November 12th, 2014 12:31 PM	Replies: 13 Views: 441	Last Post By astromark January 18th, 2015, 04:50 AM
Matter VS Anti-Matter Question Started by Estheria Quintessimo, January 14th, 2015 09:11 PM	Replies: 2 Views: 141	Last Post By G O R T January 15th, 2015, 05:58 AM
How and when was moon made? Started by Tyrannosaurus Rex, January 6th, 2015 05:17 PM	Replies: 27 Views: 548	Last Post By astromark January 11th, 2015, 01:59 PM
Lunar Inclination, why does it vary ? Started by Bjarne, January 10th, 2015 02:29 AM	Replies: 4 Views: 200	Last Post By Janus January 10th, 2015, 02:24 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: 198 Views: 2,981	Last Post By marbor22 January 8th, 2015, 09:24 AM
Moved: Lunar Inclination Anomaly - Is it true ? Started by Bjarne, January 3rd, 2015 04:19 AM	Replies: - Views: -
Pluto Started by skeptic, January 1st, 2015 11:08 PM	Replies: 2 Views: 195	Last Post By PhDemon January 2nd, 2015, 11:20 AM
What will be NASA'or ESA s biggest news 2015? Started by Lynx_Fox, December 31st, 2014 10:59 AM	Replies: 2 Views: 183	Last Post By billvon December 31st, 2014, 06:31 PM
How much time dialation on earth Started by GoldenRatio, December 26th, 2014 12:43 PM	Replies: 17 Views: 454	Last Post By Robittybob1 December 31st, 2014, 01:58 AM
Distributed mirror in the visible Started by Nic321, December 29th, 2014 06:48 AM	Replies: 4 Views: 195	Last Post By Nic321 December 29th, 2014, 09:54 AM
Why is Ceres mass so low? Started by Albator, November 27th, 2014 05:29 AM	Replies: 4 Views: 307	Last Post By G O R T December 27th, 2014, 09:03 PM
Question about the Earth's movement Started by MattMVS7, December 27th, 2014 12:13 PM	Replies: 1 Views: 159	Last Post By astromark December 27th, 2014, 02:25 PM
Calculation of the acceleration of the Earth ? Started by Bjarne, December 20th, 2014 05:17 AM	Replies: 3 Views: 274	Last Post By Robittybob1 December 20th, 2014, 01:30 PM
2 astronauts will expand envelope with 1-year spaceflight Started by cosmictraveler, December 19th, 2014 08:14 AM	Replies: 0 Views: 190	Last Post By cosmictraveler December 19th, 2014, 08:14 AM
Rover finds methane in Mars air, organics in rocks Started by cosmictraveler, December 17th, 2014 10:28 AM	Replies: 3 Views: 505	Last Post By cosmictraveler December 17th, 2014, 06:22 PM