Hosted by Chris Beckett & Shane Ludtke, two amateur astronomers in Saskatchewan. [email protected] The Actual Astronomy Podcast presents A History of Planetary Motion. In this episode we are joined again by Dave Chapman. Dave will review the history of our understanding of planetary motion, from prehistoric times and antiquity to the present day. He covers the contributions of Mesopotamians, The Greeks, Copernicus, Brahe, Kepler, Galileo, Newton, Halley, Lagrange, Laplace, Gauss, Le Verrier, Galle, Einstein, and Bretagnon. He concludes that our knowledge has progressed immensely, but in a way, we have come full circle! We've added a new way to donate to 365 Days of Astronomy to support editing, hosting, and production costs. Just visit: https://www.patreon.com/365DaysOfAstronomy and donate as much as you can! Share the podcast with your friends and send the Patreon link to them too! Every bit helps! Thank you! ------------------------------------ Do go visit http://www.redbubble.com/people/CosmoQuestX/shop for cool Astronomy Cast and CosmoQuest t-shirts, coffee mugs and other awesomeness! http://cosmoquest.org/Donate This show is made possible through your donations. Thank you! (Haven't donated? It's not too late! Just click!) ------------------------------------ The 365 Days of Astronomy Podcast is produced by the Planetary Science Institute. http://www.psi.edu Visit us on the web at 365DaysOfAstronomy.org or email us at [email protected].

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“What did the council decide on item 42?” — answered with the speaker and the moment.

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