Gravity is one of the most basic and powerful forces shaping our universe. Discover its nature within our own solar system, from the smallest moons to the largest planets. |
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Title: | Lords of Gravity | |
Air Date: | October 6, 2009 | |
Runtime: | 30 min | |
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Version 1 | youtube.com | 5 views | Report Link | ||
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artrok2000 : This series has done wonders for my insomnia