Actual Astronomy - A History of Planetary Motion

Mar 20, 2025

Dave Chapman, an expert on planetary motion and contributor to the Griffith Observatory Annual Science Writing Award, dives into the history of our understanding of planetary motion. He traces the evolution from ancient observations through the works of giants like Copernicus, Kepler, and Newton, to modern astronomical breakthroughs. Discussing controversies like the discovery of Neptune, he highlights the shift from geocentric to heliocentric models, and how cultural context influenced our cosmic views. It's a captivating journey through time and discovery!