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The Gravity of the Situation: Crash Course Astronomy #7

In today's episode, Phil looks at how gravity plays out across the universe.

This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse

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Gravity is a Force 2:17
Different Types of Orbit 3:41
Escape Velocity 5:30
Weightless Mass 7:03

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PHOTO/VIDEO CREDITS
First photo by Roscosmos / NTSOMZ/ SRC "Planeta" / zelenyikot.livejournal.com
http://www.slate.com/blogs/bad_astronomy/2013/09/25/earth_at_equinox_elektro_l_view_of_the_earth_from_space.html
http://commons.wikimedia.org/wiki/File:Portrait_of_Robert_Hooke_with_a_book,_spring_and_quill.JPG
http://en.wikipedia.org/wiki/Isaac_Newton#mediaviewer/File:GodfreyKneller-IsaacNewton-1689.jpg
http://en.wikipedia.org/wiki/Johannes_Kepler#mediaviewer/File:Johannes_Kepler_1610.jpg
http://en.wikipedia.org/wiki/Karen_L._Nyberg#mediaviewer/File:Karen_Nyberg_STS124_-_2008June07_(NASA_S124-e007134).jpg
https://www.youtube.com/watch?v=doN4t5NKW-k
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