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: Rules on homework help - READ THIS BEFORE POSTING OR HELPING Started by Dishmaster, November 15th, 2008 12:28 PM	Replies: 0 Views: 18,392	Last Post By Dishmaster November 15th, 2008, 12:28 PM
Sticky: Interesting astronomical events and observing tips Started by ricci70, October 20th, 2008 04:23 AM 2 Pages • 1 2	Replies: 129 Views: 19,846	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: 6,303	Last Post By Dishmaster September 20th, 2011, 05:34 PM

Does gravity cast a shadow? Started by 6nqpnw, February 14th, 2012 02:22 PM	Replies: 29 Views: 1,466	Last Post By 6nqpnw February 29th, 2012, 08:43 AM
New Kind of Supernova Discovered Started by brane wave, August 9th, 2011 10:34 PM	Replies: 3 Views: 529	Last Post By brane wave August 13th, 2011, 05:51 PM
Can black holes eat time? Started by chewimcdougle, July 9th, 2008 12:49 PM	Replies: 14 Views: 2,348	Last Post By Cold Fusion July 13th, 2008, 03:06 AM
why earth rotates about its own axis? Started by sabarinath, November 16th, 2008 11:27 PM	Replies: 6 Views: 15,996	Last Post By Dishmaster November 22nd, 2008, 06:44 PM
Redshift Components Started by 1946cosmo, December 26th, 2008 06:31 AM	Replies: 20 Views: 1,154	Last Post By 1946cosmo January 14th, 2012, 08:48 AM
What's Outside space. Started by Gablo15, February 14th, 2010 01:01 AM	Replies: 26 Views: 6,848	Last Post By Sealeaf February 22nd, 2013, 05:51 AM
Standard candles Started by Cyberia, August 27th, 2011 05:17 AM	Replies: 6 Views: 615	Last Post By PhysBang August 28th, 2011, 12:31 PM
"MOND", Prelude to "Critique of the Universe, Introduction" Started by Gary Anthony Kent, September 5th, 2011 10:26 PM	Replies: 40 Views: 2,075	Last Post By Gary Anthony Kent January 28th, 2012, 12:31 AM
Magnetism in the moon? Started by holkapolka, November 29th, 2011 02:55 AM	Replies: 6 Views: 532	Last Post By Sealeaf December 8th, 2011, 08:33 AM
Andromeda collision & the expansion of space Started by PetTastic, June 1st, 2012 05:00 AM	Replies: 22 Views: 1,029	Last Post By SpeedFreek June 6th, 2012, 02:01 PM
Curiosity Rover landing at the weekend Started by Zwirko, August 1st, 2012 03:40 PM	Replies: 52 Views: 1,120	Last Post By KALSTER August 20th, 2012, 06:22 AM
The curious motions of venus... Can we explain it? Started by question for you, August 19th, 2012 10:49 AM	Replies: 3 Views: 616	Last Post By question for you August 20th, 2012, 08:39 AM
Science Channel - How The Universe Works Started by pikkiwoki, September 1st, 2012 09:07 AM	Replies: 3 Views: 945	Last Post By pikkiwoki September 1st, 2012, 08:25 PM
Universe or Multiverse Started by Out of the box, September 27th, 2012 01:32 PM	Replies: 58 Views: 2,335	Last Post By SpeedFreek December 22nd, 2012, 06:52 AM
Question About The Big Bang Started by RickyD3, October 13th, 2012 11:47 AM	Replies: 18 Views: 682	Last Post By question for you November 3rd, 2012, 09:15 PM
Astronomy Magazine Started by Jim Colyer, February 21st, 2013 12:27 AM	Replies: 0 Views: 355	Last Post By Jim Colyer February 21st, 2013, 12:27 AM
What exactly is antimatter? Started by xDARTHWOLFx, February 18th, 2013 10:06 PM	Replies: 52 Views: 870	Last Post By Strange March 6th, 2013, 04:20 AM
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: 2,689	Last Post By SciFi-Real March 6th, 2013, 02:48 AM
dark energy, obviously Started by alex_ro, February 18th, 2013 12:13 PM	Replies: 40 Views: 613	Last Post By AlexG February 22nd, 2013, 07:34 PM
An expanding universe? Started by RyanF, February 25th, 2013 06:38 PM	Replies: 3 Views: 455	Last Post By curious mind March 5th, 2013, 07:37 PM