Comments on: Satellite Soars Overhead to Study the Earth’s Gravity http://blogs.discovermagazine.com/80beats/2009/04/09/satellite-soars-overhead-to-study-the-earths-gravity/ 80beats is DISCOVER's news aggregator, weaving together the choicest tidbits from the best articles covering the day\'s most compelling topics. Mon, 09 Nov 2009 05:16:34 -0600 http://wordpress.org/?v=2.8.4 hourly 1 By: Uncle Al http://blogs.discovermagazine.com/80beats/2009/04/09/satellite-soars-overhead-to-study-the-earths-gravity/comment-page-1/#comment-23150 Uncle Al Thu, 09 Apr 2009 17:14:41 +0000 http://blogs.discovermagazine.com/80beats/2009/04/09/satellite-soars-overhead-to-study-the-earths-gravity/#comment-23150 The quietest sun since 1913 (0.02% smaller solar constant but 6% decrease in 190 nm UV vs. the 1996 solar minimum) has cooled and contracted the Earth's upper atmosphere. It is a golden time to do tight orbits. http://science.nasa.gov/headlines/y2009/01apr_deepsolarminimum.htm middle The quietest sun since 1913 (0.02% smaller solar constant but 6% decrease in 190 nm UV vs. the 1996 solar minimum) has cooled and contracted the Earth’s upper atmosphere. It is a golden time to do tight orbits.

http://science.nasa.gov/headlines/y2009/01apr_deepsolarminimum.htm
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]]> By: Nick http://blogs.discovermagazine.com/80beats/2009/04/09/satellite-soars-overhead-to-study-the-earths-gravity/comment-page-1/#comment-23129 Nick Thu, 09 Apr 2009 15:46:13 +0000 http://blogs.discovermagazine.com/80beats/2009/04/09/satellite-soars-overhead-to-study-the-earths-gravity/#comment-23129 Welcome to the 21st century, where we have finally stopped using massive EXPLOSIONS to power our spacecraft. :) Welcome to the 21st century, where we have finally stopped using massive EXPLOSIONS to power our spacecraft. :)

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