The Sun: Crash Course Astronomy #10





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Published on Mar 19, 2015

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
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

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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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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