The Sun: Crash Course Astronomy #10

Phil takes us for a closer (eye safe!) look at the two-octillion ton star that rules our solar system. We look at the sun's core, plasma, magnetic fields, sunspots, solar flares, coronal mass ejections, and what all of that means for our planet.

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

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The Sun is a Star 1:28
Plasma's Magnetic Fields 6:11
Sunspots, Solar Flares, and Coronal Mass Ejections 7:09
How the Earth Reacts 9:18

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PHOTO/VIDEO CREDITS
Hubble extrasolar planet search field in Sagittarius: http://www.spacetelescope.org/images/... [credit: NASA, ESA, K. Sahu (STScI) and the SWEEPS science team]
The Sun: http://www.nasa.gov/sites/default/fil... [credit: SDO/HMI]
The Sun: http://d1jqu7g1y74ds1.cloudfront.net/... [credit: NASA/SDO/AIA]
Earth: http://www.nasa.gov/content/goddard/e... [credit: NASA's Earth Observatory]
Fusion in the Sun: http://commons.wikimedia.org/wiki/Fil... [credit: Borb]
Empire State Building: http://de.wikipedia.org/wiki/Empire_S...
Sun Structure: https://www.flickr.com/photos/1130437...
Photospheric granulation: http://solarscience.msfc.nasa.gov/ima...
Corona: http://philhart.smugmug.com/Sun/Queen... [credit: Phil Hart]
"Magnet0873" by Newton Henry Black - Newton Henry Black, Harvey N. Davis (1913) Practical Physics, The MacMillan Co., USA, p. 242, fig. 200. Licensed under Public Domain via Wikimedia Commons - http://commons.wikimedia.org/wiki/Fil...
Strange Days On The Sun: http://svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA's Goddard Space Flight Center Images courtesy of NASA/SDO]
Under the Sunspots: http://svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA/Goddard Space Flight Center Conceptual Image Lab]
Raining Loops: http://svs.gsfc.nasa.gov/vis/a010000/... [credit: NASA's Goddard Space Flight Center/SDO]
Coronal Mass Ejection: https://www.youtube.com/watch?v=p_xYc... [credit: NASA]
Aurora: https://www.youtube.com/watch?v=X-Bic...
Soloar Close-ups: http://svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA]

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