Uploaded March 2018 | Updated September 2026, 8 hours ago

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A breakdown of the Planet Nine hypothesis. 20 "facts" (i.e. evidence and speculation) total. For more planetary facts, check out the playlist: youtube.com/playlist?list=PLrLu47k41a8Rb0q7R0J1t0zD6YWkHZaes

This is a revival of an old video series I made in 2012 (focusing on solar system trivia), after getting the motivation to bring this back. The original videos are gone, but the 2013 remakes can still be seen here: youtube.com/watch?v=CiRXcZAorcU

Song: "Undiscovered" by 89Ford on Musicshake

Sources:
• solarsystem.nasa.gov/planets/hypothetical-planet-x/in-depth
• independent.co.uk/news/science/planet-x-nine-9-nibiru-nasa-conspiracy-theory-apocalypse-destroy-life-earth-a7997296.html
• popsci.com/search-for-real-planet-x#page-4
• skyandtelescope.com/astronomy-news/solar-system/new-wrinkles-in-the-search-for-planet-x