How Many Planets There Actually Are

Originally posted to the Astro Pro Channel on October 18, 2022 Buy the map here: https://store.nebula.tv/products/atla... Everyone remembers the day Pluto was downgraded from a planet to a "dwarf planet." But what was the real motive behind this decision, and what else might the IAU been trying to hide? Sources / Further Reading: https://www.iau.org/news/pressrelease... https://www.iau.org/news/pressrelease... https://www.sandiegouniontribune.com/... https://archive.org/details/galileoat... http://mitchellarchives.com/the-disco... https://www.google.com/books/edition/... https://web.albion.edu/images/sites/n... https://www.esa.int/About_Us/ESA_hist... https://www.thehindu.com/children/pal... https://spaceweather.com/swpod2006/13... http://philsci-archive.pitt.edu/3418/ http://web.gps.caltech.edu/~mbrown/pl... http://web.gps.caltech.edu/~mbrown/pa... http://authors.library.caltech.edu/34... https://en.wikipedia.org/wiki/50000_Q... https://arxiv.org/abs/1604.07461 https://iopscience.iop.org/article/10... https://solarsystem.nasa.gov/resource... https://www.iau.org/public/themes/nam... https://www.skyatnightmagazine.com/sp... https://www.iau.org/news/pressrelease... https://www.loc.gov/everyday-mysterie... https://www.loc.gov/item/webcast-7161/ https://had.aas.org/resources/aashist... https://www.iau.org/public/themes/nam... https://www.wsj.com/articles/SB100014... https://www.nasa.gov/mission_pages/vo... https://www.dlr.de/content/en/images/... A tiny, moving point of light – the discovery of Pluto - DLR Portalhttps://onlineonly.christies.com/s/eu... https://www.atticusrarebooks.com/page... https://www.rarenewspapers.com/view/5... https://www.rarenewspapers.com/view/5... https://www.rarenewspapers.com/view/5... https://www.flickr.com/photos/bowbric... https://www.nasa.gov/newhorizons/happ... https://www.loc.gov/resource/hhh.az03... https://solarsystem.nasa.gov/planets/... https://www.newyorker.com/magazine/20... http://www.johnstonsarchive.net/astro... https://tulsaworld.com/archive/scienc... https://www.space.com/25817-quaoar.html https://astrobiology.nasa.gov/news/pl.... https://svs.gsfc.nasa.gov/12278 https://svs.gsfc.nasa.gov/vis/a010000... https://www.physics.nau.edu/~trujillo... https://phys.org/news/2015-08-dwarf-p... https://webbtelescope.org/news/first-...