http://www.astronomycast.com/astronomy/episode-27-the-third-question-show/ Take a weekly facts-based journey through the cosmos with Astronomy Cast. Sun, 11 Jul 2010 12:05:12 +0000 http://wordpress.org/?v=2.9.2 hourly 1 http://www.astronomycast.com/astronomy/episode-27-the-third-question-show/comment-page-1/#comment-288 Cassandra Mon, 17 Mar 2008 11:07:21 +0000 http://www.astronomycast.com/questions/episode-27-the-third-question-show/#comment-288 Concerning the speed of Gravity. I understand that Gravity is the warping of Space-Time and I understand that Speed = Distance/Time therefore how does Gravity have a speed? Time is relative to light and distance is a measurement of two points in space, which is measured by the time it takes light to travel from point A to point B therefore isn't distance also relative to light and therefore relative to time. Continuing with this thought isn't Gravity just the reason why light travels the way it does. In other words isn't Gravity the reason behind Einstein's theory of relativity and therefore would not have a speed? I hope you understand what I am trying to say here I think I have gone around in a big circle and ended up in a place of confusion :) Concerning the speed of Gravity. I understand that Gravity is the warping of Space-Time and I understand that Speed = Distance/Time therefore how does Gravity have a speed? Time is relative to light and distance is a measurement of two points in space, which is measured by the time it takes light to travel from point A to point B therefore isn't distance also relative to light and therefore relative to time. Continuing with this thought isn't Gravity just the reason why light travels the way it does. In other words isn't Gravity the reason behind Einstein's theory of relativity and therefore would not have a speed? I hope you understand what I am trying to say here I think I have gone around in a big circle and ended up in a place of confusion

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