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?

https://www.iau.org/news/pressrelease...

https://www.iau.org/news/pressrelease...

https://www.sandiegouniontribune.com/...

https://archive.org/details/galileoat...

http://mitchellarchives.com/thedisco...

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://philsciarchive.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/everydaymysterie...

https://www.loc.gov/item/webcast7161/

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/25817quaoar.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/201508dwarfp...

https://webbtelescope.org/news/first...