Moon Phases Explained π | Crash Course Astronomy #4
Learn about the causes and names of the Moon's phases in this Crash Course Astronomy episode with Phil.

CrashCourse
4.0M views β’ Feb 5, 2015

About this video
In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases.
Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster
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Chapters:
Why does the Moon Have Phases? 00:00
New Moon 2:26
Waxing Crescent 4:17
First Quarter 4:35
Waxing Gibbous 5:15
Full Moon 5:32
Waning Gibbous, Third Quarter, and Waning Crescent 6:26
Earthshine 7:20
Review 8:58
--
PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Follow Phil on Twitter: https://twitter.com/badastronomer
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Instagram - https://www.instagram.com/thecrashcourse/
CC Kids: http://www.youtube.com/crashcoursekids
--
PHOTOS
http://en.wikipedia.org/wiki/Moon#mediaviewer/File:FullMoon2010.jpg
https://solarsystem.nasa.gov/multimedia/display.cfm?IM_ID=1879
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0505.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0553.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0634.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0706.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0809.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0905.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.1011.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.1145.jpg
http://en.wikipedia.org/wiki/Moon#mediaviewer/File:NASA-Apollo8-Dec24-Earthrise.jpg
http://global.jaxa.jp/press/2008/04/img/20080411_kaguya_01l.jpg
http://global.jaxa.jp/press/2008/04/20080411_kaguya_e.html
http://www.esa.int/Our_Activities/Operations/First_view_of_Earth_as_Rosetta_approaches_home
http://commons.wikimedia.org/wiki/File:Sachin_Nigam_-_starry_moon_%28by-sa%29.jpg
https://www.flickr.com/photos/badastronomy/14397419837/
Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster
--
Chapters:
Why does the Moon Have Phases? 00:00
New Moon 2:26
Waxing Crescent 4:17
First Quarter 4:35
Waxing Gibbous 5:15
Full Moon 5:32
Waning Gibbous, Third Quarter, and Waning Crescent 6:26
Earthshine 7:20
Review 8:58
--
PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Follow Phil on Twitter: https://twitter.com/badastronomer
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Instagram - https://www.instagram.com/thecrashcourse/
CC Kids: http://www.youtube.com/crashcoursekids
--
PHOTOS
http://en.wikipedia.org/wiki/Moon#mediaviewer/File:FullMoon2010.jpg
https://solarsystem.nasa.gov/multimedia/display.cfm?IM_ID=1879
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0505.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0553.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0634.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0706.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0809.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.0905.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.1011.jpg
http://svs.gsfc.nasa.gov/vis/a000000/a004200/a004236/frames/730x730_1x1_30p/moon.1145.jpg
http://en.wikipedia.org/wiki/Moon#mediaviewer/File:NASA-Apollo8-Dec24-Earthrise.jpg
http://global.jaxa.jp/press/2008/04/img/20080411_kaguya_01l.jpg
http://global.jaxa.jp/press/2008/04/20080411_kaguya_e.html
http://www.esa.int/Our_Activities/Operations/First_view_of_Earth_as_Rosetta_approaches_home
http://commons.wikimedia.org/wiki/File:Sachin_Nigam_-_starry_moon_%28by-sa%29.jpg
https://www.flickr.com/photos/badastronomy/14397419837/
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Video Information
Views
4.0M
Likes
44.4K
Duration
9:46
Published
Feb 5, 2015
User Reviews
4.6
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