Introduction to Astronomy: Crash Course Astronomy #1

Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?"

Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/products/crashcourse-astronomy-poster

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Chapters:
Introduction 00:00
What is Astronomy? 3:00
Who Studies Astronomy? 3:50
Origins of Astronomy 5:27
Astrology vs Astronomy 6:19
Geocentrism 7:51
Revolutions in Astronomy 8:58
Astronomy Today 10:26
Review 11:29

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Photos:
http://commons.wikimedia.org/wiki/File:Earth_cutaway.png
http://en.wikipedia.org/wiki/Earth's_magnetic_field#mediaviewer/File:Geodynamo_Between_Reversals.gif
http://en.wikipedia.org/wiki/Geomagnetic_storm#mediaviewer/File:Magnetosphere_rendition.jpg
http://en.wikipedia.org/wiki/Saturn#mediaviewer/File:Saturn_PIA06077.jpg
http://en.wikipedia.org/wiki/243_Ida#mediaviewer/File:243_Ida_large.jpg
http://commons.wikimedia.org/wiki/File:Comet_Hale_Bopp_NASA.jpg
http://solarviews.com/raw/comet/kuiper3.jpg
http://solarviews.com/cap/comet/kuiper3.htm
http://en.wikipedia.org/wiki/List_of_nearest_bright_stars#mediaviewer/File:3_Solar_Interstellar_Neighborhood_(ELitU).png
http://www.slate.com/blogs/bad_astronomy/2013/06/28/planetary_nebula_sh2_68_the_flaming_skull_nebula.html
http://www.slate.com/blogs/bad_astronomy/2013/06/06/milky_way_galaxy_two_new_discoveries_about_its_spiral_arms.html
http://en.wikipedia.org/wiki/Black_hole#mediaviewer/File:PIA16695-BlackHole-Corona-20130227.jpg
http://commons.wikimedia.org/wiki/File:Messier_69_HST.jpg
http://www.slate.com/blogs/bad_astronomy/2013/06/25/nearby_galaxies_swift_uv_pictures_of_two_galactic_neighbors.html
http://upload.wikimedia.org/wikipedia/commons/0/0f/Earth's_Location_in_the_Universe_SMALLER_(JPEG).jpg
http://www.slate.com/blogs/bad_astronomy/2013/03/21/age_of_the_universe_planck_results_show_universe_is_13_82_billion_years.html
http://www.esa.int/spaceinimages/Images/2007/02/True-colour_image_of_Mars_seen_by_OSIRIS
http://en.wikipedia.org/wiki/Andromeda_Galaxy#mediaviewer/File:WISE-_Andromeda.jpg
http://en.wikipedia.org/wiki/Triangulum_Galaxy#mediaviewer/File:VST_snaps_a_very_detailed_view_of_the_Triangulum_Galaxy.jpg
http://en.wikipedia.org/wiki/Hubble_Space_Telescope#mediaviewer/File:HST-SM4.jpeg
http://www.slate.com/blogs/bad_astronomy/2013/12/21/winter_solstice_2013_the_shortest_day_of_the_year.html
http://www.slate.com/blogs/bad_astronomy/2012/12/28/full_moon_today_is_the_13th_full_moon_of_2012.html
http://en.wikipedia.org/wiki/Nicolaus_Copernicus#mediaviewer/File:Nikolaus_Kopernikus.jpg
http://en.wikipedia.org/wiki/Tycho_Brahe#mediaviewer/File:Tycho_Brahe.JPG
http://en.wikipedia.org/wiki/Johannes_Kepler#mediaviewer/File:Johannes_Kepler_1610.jpg
http://en.wikipedia.org/wiki/Isaac_Newton#mediaviewer/File:GodfreyKneller-IsaacNewton-1689.jpg
http://en.wikipedia.org/wiki/Galileo_Galilei#mediaviewer/File:Justus_Sustermans_-_Portrait_of_Galileo_Galilei,_1636.jpg
http://www.slate.com/blogs/bad_astronomy/2012/09/25/revealing_the_universe_the_hubble_extreme_deep_field.html