Introduction to the Solar System: Crash Course Astronomy #9

In today’s Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today.

PHOTO/VIDEO CREDITS
Sun: http://www.nasa.gov/sites/default/files/706436main_20121114-304-193blend_m6-orig_full.jpg [credit: NASA/ESA]
Jupiter: http://www.jpl.nasa.gov/images/hubble/20140515/jupiter20140515-full.jpg [credit: NASA/ESA]
Geocentric celestial spheres; Peter Apian’s Cosmographia (Antwerp, 1539): http://en.wikipedia.org/wiki/Celestial_spheres#mediaviewer/File:Ptolemaicsystem-small.png
Ganymede: http://en.wikipedia.org/wiki/File:Noaa_ganymede.jpg
Mercury: http://messenger.jhuapl.edu/gallery/sciencePhotos/pics/CW0131775256F_web.png [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington]
Understanding Solar System Dynamics: Orbits and Kepler’s Laws (2008): https://archive.org/details/OrbitsAndKeplersLaws
Mercury: http://apod.nasa.gov/apod/ap080116.html
Venus: http://www.msss.com/all_projects/magellan.php
Earth: http://earthobservatory.nasa.gov/IOTD/view.php?id=36019
Mars: http://nssdc.gsfc.nasa.gov/photo_gallery/photogallery-mars.html
Jupiter: http://www.nasa.gov/mission_pages/cassini/multimedia/pia04866.html
Saturn: http://www.slate.com/content/dam/slate/blogs/bad_astronomy/2014/06/Ten%20Years%20at%20Saturn/cassini_ugarkovic_saturn.jpg.CROP.original-original.jpg [credit: Photo by NASA/JPL/Space Science Institute/Gordan Ugarkovic]
Uranus: http://hubblesite.org/newscenter/archive/releases/1998/35/image/a/
Neptune: http://www.slate.com/blogs/bad_astronomy/2014/05/15/neptune_voyager_images_updated_for_portrait_of_the_eighth_planet.html
http://www.nasa.gov/sites/default/files/hs-2014-29-a-large_web.jpg [credit: JHUAPL/SwRI/Dan Durda]
Bennu’s Journey: http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=20220&button=recent
http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=11541
Artist’s impression of a protoplanetary disk: http://en.wikipedia.org/wiki/Protoplanetary_disk#mediaviewer/File:Artist%E2%80%99s_Impression_of_a_Baby_Star_Still_Surrounded_by_a_Protoplanetary_Disc.jpg
Rocky Ring of Debris Around Vega: http://www.nasa.gov/mission_pages/spitzer/multimedia/pia16610.html [image credit: NASA/JPL-Caltech]
Proplyds in the Orion Nebula: