Comments on: The acceleration of the expansion of the universe confirmed http://www.slackerastronomy.org/wordpress/2008/01/the-acceleration-of-the-expansion-of-the-universe-confirmed/ If you aren't going to care about something, may as well not care about astronomy Sat, 20 Feb 2010 21:11:56 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: michael http://www.slackerastronomy.org/wordpress/2008/01/the-acceleration-of-the-expansion-of-the-universe-confirmed/comment-page-1/#comment-639736 michael Sat, 05 Sep 2009 05:49:05 +0000 http://www.slackerastronomy.org/wordpress/index.php/archive/the-acceleration-of-the-expansion-of-the-universe-confirmed/#comment-639736 It's fun to speculate, isn't it, elgenubi2003? Empty spacetime has no mass, though. Also, we know the universe is not expanding at or near the speed of light, <a href="http://www.cfa.harvard.edu/~huchra/hubble.plot.dat" rel="nofollow">we measure the expansion rate</a>, called the Hubble Constant, and it is 65 +/- 10 km/sec/Mpc. If you are interested in cosmology I highly suggest you read Barbara Ryden's "Introduction to Cosmology". It’s fun to speculate, isn’t it, elgenubi2003? Empty spacetime has no mass, though. Also, we know the universe is not expanding at or near the speed of light, we measure the expansion rate, called the Hubble Constant, and it is 65 +/- 10 km/sec/Mpc.

If you are interested in cosmology I highly suggest you read Barbara Ryden’s “Introduction to Cosmology”.

]]> By: elgenubi2003 http://www.slackerastronomy.org/wordpress/2008/01/the-acceleration-of-the-expansion-of-the-universe-confirmed/comment-page-1/#comment-638430 elgenubi2003 Tue, 01 Sep 2009 21:29:07 +0000 http://www.slackerastronomy.org/wordpress/index.php/archive/the-acceleration-of-the-expansion-of-the-universe-confirmed/#comment-638430 From any given perspective in the universe, the cosmos appears to expand at a higher rate the farther away one looks (inflationary model). This means that at some distance in equal directions from any given observation point, the universe will be expanding at near-light speed. According to relativity theory, mass approaches infinity as the speed of light is approached, as occurs at the event horizon around a singularity. Therefore, each point in the universe is surrounded by a 'singularity sphere' that approaches infinite mass. The observed acceleration of expansion is due to the fact that all objects are 'falling outward' and accelerating toward this sphere. From any given perspective in the universe, the cosmos appears to expand at a higher rate the farther away one looks (inflationary model). This means that at some distance in equal directions from any given observation point, the universe will be expanding at near-light speed. According to relativity theory, mass approaches infinity as the speed of light is approached, as occurs at the event horizon around a singularity. Therefore, each point in the universe is surrounded by a ’singularity sphere’ that approaches infinite mass. The observed acceleration of expansion is due to the fact that all objects are ‘falling outward’ and accelerating toward this sphere.

]]> By: Environment News Feed » NASA and DOE Developing the First Space-Based Dark Energy Observatory http://www.slackerastronomy.org/wordpress/2008/01/the-acceleration-of-the-expansion-of-the-universe-confirmed/comment-page-1/#comment-479888 Environment News Feed » NASA and DOE Developing the First Space-Based Dark Energy Observatory Sat, 22 Nov 2008 10:20:41 +0000 http://www.slackerastronomy.org/wordpress/index.php/archive/the-acceleration-of-the-expansion-of-the-universe-confirmed/#comment-479888 [...] of the most significant scientific findings in the last decade was that the expansion of the universe is accelerating. The acceleration is caused by a previously unknown dark energy that makes up approximately 70 [...] [...] of the most significant scientific findings in the last decade was that the expansion of the universe is accelerating. The acceleration is caused by a previously unknown dark energy that makes up approximately 70 [...]

]]> By: NASA and DOE Developing the First Space-Based Dark Energy Observatory : Red, Green, and Blue http://www.slackerastronomy.org/wordpress/2008/01/the-acceleration-of-the-expansion-of-the-universe-confirmed/comment-page-1/#comment-479872 NASA and DOE Developing the First Space-Based Dark Energy Observatory : Red, Green, and Blue Sat, 22 Nov 2008 09:23:23 +0000 http://www.slackerastronomy.org/wordpress/index.php/archive/the-acceleration-of-the-expansion-of-the-universe-confirmed/#comment-479872 [...] of the most significant scientific findings in the last decade was that the expansion of the universe is accelerating. The acceleration is caused by a previously unknown dark energy that makes up approximately 70 [...] [...] of the most significant scientific findings in the last decade was that the expansion of the universe is accelerating. The acceleration is caused by a previously unknown dark energy that makes up approximately 70 [...]

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