CrashCourse - Astronomy - 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. This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster -- Chapters: Introduction 00:00 Geocentrism vs Heliocentrism 0:51 Makeup of the Solar System 2:38 Is Pluto a Planet? 3:14 Our Solar System 4:24 How Our Solar System Formed 5:36 Planet Formation Depends on Distance to Sun 7:14 Review 8:57 -- 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 -- 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: http://www.esa.int/Our_Activities/Space_Science/Born_in_beauty_proplyds_in_the_Orion_Nebula