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: 23,346	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: 7,750	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: 19,563	Last Post By Dishmaster November 15th, 2008, 12:28 PM

Block out the sun. Started by flantoons, March 19th, 2019 03:20 AM	Replies: 0 Views: 176	Last Post By flantoons March 19th, 2019, 03:20 AM
Could we be on the other side of a black hole? Started by filix, March 18th, 2019 08:24 AM	Replies: 0 Views: 129	Last Post By filix March 18th, 2019, 08:24 AM
1919 arthur edington question Started by jfoldbar, February 2nd, 2019 03:48 PM	Replies: 3 Views: 463	Last Post By jfoldbar February 2nd, 2019, 05:43 PM
Why do we gain sunlite "after the winter solstice" in the afternoon and not in the morning? Started by filix, January 18th, 2019 09:08 AM	Replies: 5 Views: 376	Last Post By filix January 19th, 2019, 08:10 AM
Dumb Questions Reborn Started by zinjanthropos, June 29th, 2017 10:20 PM	Replies: 91 Views: 4,355	Last Post By marnixR January 7th, 2019, 05:59 AM
effects of gravity Started by Genesis, December 1st, 2018 04:28 AM	Replies: 4 Views: 750	Last Post By Vexspits December 23rd, 2018, 11:10 AM
Stephen Hawking Says 'There Is No God' Started by cosmictraveler, September 25th, 2014 04:06 PM	Replies: 51 Views: 3,098	Last Post By ox November 25th, 2018, 07:20 AM
Is the Big Bang still banging? Started by GiantEvil, October 19th, 2018 02:17 PM	Replies: 4 Views: 794	Last Post By ox October 20th, 2018, 06:30 AM
Mars. Started by Halliday, July 28th, 2018 07:57 AM	Replies: 22 Views: 1,679	Last Post By mmatt9876 October 9th, 2018, 05:07 PM
Red shift Started by BobJeffs, July 22nd, 2018 05:41 PM	Replies: 0 Views: 963	Last Post By BobJeffs July 22nd, 2018, 05:41 PM
Variant on giant-impact hypothesis - the origin of continents Started by CEngelbrecht, November 8th, 2017 12:28 PM	Replies: 2 Views: 1,643	Last Post By DaveC426913 May 6th, 2018, 08:21 PM
Presentation: Worldwide Digital Sundial Started by angelsun, February 28th, 2018 02:26 PM	Replies: 3 Views: 1,020	Last Post By DaveC426913 February 28th, 2018, 04:42 PM
Question Started by anaylor01, January 20th, 2018 09:48 AM	Replies: 23 Views: 1,595	Last Post By Jason Summer February 24th, 2018, 12:39 PM
If the Moon was the size of Mercury and much closer (ex:half the distance away) ? Started by icewendigo, December 1st, 2017 09:15 AM	Replies: 6 Views: 1,399	Last Post By Jason Summer February 24th, 2018, 12:18 PM
Moved: Big bang in buddhist pali tipitaka suttas Started by kheminda, February 21st, 2018 09:16 AM	Replies: - Views: -
Reaching The Stars Started by Photon Guy, January 10th, 2018 04:06 PM	Replies: 25 Views: 1,773	Last Post By ox January 16th, 2018, 05:27 AM
Magnetic reconnection, flux transfer events and atmospheric currents Started by AstralTraveler, December 17th, 2017 07:05 PM	Replies: 1 Views: 1,332	Last Post By Dywyddyr December 17th, 2017, 07:11 PM
Research projects for high schoolers Started by evanhen88, November 30th, 2017 09:03 PM	Replies: 1 Views: 1,115	Last Post By Racoln December 15th, 2017, 10:20 PM
Meteor varients Started by Genesis, November 30th, 2017 12:53 PM	Replies: 1 Views: 1,146	Last Post By Paleoichneum November 30th, 2017, 01:05 PM
Planets that are similar to Earth that have been hit by a Gamma Ray Burst. Started by RamenNoodles, November 17th, 2017 05:35 AM	Replies: 0 Views: 1,309	Last Post By RamenNoodles November 17th, 2017, 05:35 AM