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: 21,880	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: 7,112	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: 19,029	Last Post By Dishmaster November 15th, 2008, 01:28 PM

Should mass vanish if 0 Kelvin is actually enforced into a system? Started by Lia, September 17th, 2014 01:54 PM	Replies: 3 Views: 414	Last Post By mathman September 17th, 2014, 05:34 PM
0 Kelvin PPL!! Started by Lia, September 11th, 2014 11:51 AM	Replies: 2 Views: 480	Last Post By PhDemon September 11th, 2014, 04:49 PM
Sept., 11 th 2014 ~ NEWS.. Started by astromark, September 11th, 2014 12:47 AM	Replies: 3 Views: 447	Last Post By dan hunter September 11th, 2014, 05:40 AM
Black Hole-Particles-Speed of light Started by Redic, September 4th, 2014 07:54 PM	Replies: 9 Views: 699	Last Post By astromark September 9th, 2014, 01:53 AM
Is it possible to have a disc planet? Started by hencook, September 3rd, 2014 01:49 AM	Replies: 3 Views: 408	Last Post By exchemist September 5th, 2014, 05:21 AM
Is it scientifically impossible to recreate our universe in the lab? Started by gthich, August 25th, 2014 01:06 PM	Replies: 14 Views: 685	Last Post By Write4U September 4th, 2014, 05:17 PM
Why does the sun have differential rotation rates Started by dan hunter, August 20th, 2014 10:12 PM	Replies: 99 Views: 1,104	Last Post By John Galt September 2nd, 2014, 04:50 AM
Did the ancient Indians know about all the planets in our solar system? Started by mrh214, September 1st, 2014 04:07 PM	Replies: 3 Views: 1,507	Last Post By John Galt September 2nd, 2014, 01:34 AM
Which way South on WMAP Started by Bjarne, August 31st, 2014 03:47 AM	Replies: 2 Views: 263	Last Post By astromark August 31st, 2014, 06:28 AM
Moved: Infinity: fact, fiction, solution. Started by socratus, August 27th, 2014 07:37 AM	Replies: - Views: -
Is the 4D time-space continuum real? Started by dan hunter, August 13th, 2014 05:06 PM	Replies: 21 Views: 761	Last Post By marcbo August 27th, 2014, 08:35 AM
Moved: A hypothesis regarding dark matter Started by GoldenRatio, August 25th, 2014 02:57 AM	Replies: - Views: -
Is the speed of light really a constant? Started by ultimatesceptic, August 2nd, 2014 05:20 PM 2 Pages • 1 2	Replies: 173 Views: 3,772	Last Post By bangstrom August 24th, 2014, 03:22 PM
How hot is dark matter? Started by Typ33, August 20th, 2014 12:25 PM	Replies: 10 Views: 514	Last Post By Mayflow August 23rd, 2014, 10:31 PM
The Big Bang Started by geordief, August 19th, 2014 06:54 PM	Replies: 2 Views: 289	Last Post By geordief August 20th, 2014, 09:54 AM
Supermassive Black Holes Started by spectre, August 3rd, 2014 06:43 AM	Replies: 2 Views: 343	Last Post By MindlessMath August 13th, 2014, 05:31 PM
The Big Bang and a 4-d Black Hole. Started by Daecon, August 11th, 2014 09:36 PM	Replies: 0 Views: 239	Last Post By Daecon August 11th, 2014, 09:36 PM
Dark Energy Started by Chimoshi, June 16th, 2014 12:41 AM	Replies: 34 Views: 1,202	Last Post By Callist0 August 10th, 2014, 03:52 AM
White holes Started by skeptic, July 31st, 2014 07:08 PM	Replies: 6 Views: 486	Last Post By shlunka August 1st, 2014, 03:31 PM
Power and other systems on Mars Started by Blahgory, July 27th, 2014 09:52 PM	Replies: 10 Views: 729	Last Post By Blahgory July 30th, 2014, 01:26 AM