Who Discovered the Planets? [2/2] #07 Science

Опубликовано: 14 Июль 2026
на канале: J'm'énerve pas, j'explique

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Why did it take thousands of years to discover only two planets?
From Galileo to Einstein, the journey to the far reaches of the Solar System ends with Uranus, Neptune, and MANY more if you're interested!

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SUMMARY
00:00 Reminders on the definition of a planet
02:31 Galileo
04:42 Uranus
11:06 The missing planet
15:14 Neptune
19:44 A ninth planet? 21:04 The illusion of a planet
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SOURCES
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Ceres
Giuseppe Piazzi and the Discovery of Ceres by Serio, Manara and Sicoli
https://www.lpi.usra.edu/books/Astero...

Mysterium Cosmographicum by VSAUCE
   • Mysterium Cosmographicum

Why does Titius-Bode fail (among others) for Neptune?
http://scienceline.ucsb.edu/getkey.ph...

Uranus
Lights on the Universe from the Paris Observatory
https://media4.obspm.fr/public/ressou...

Neptune
The Discovery of Neptune by Le Verrier (1846) by James Lequeux
https://journals.openedition.org/bibn...
Calculations from the excellent blog "Mathouriste"
http://www.mathouriste.eu/Obs_Paris/L...

Miscellaneous
The Big Book of Astronomy - Mary & John Gribbin
Getting Started in Astronomy - Sky & Space Special Issue No. 31

Don't hesitate to visit these sites that explore the history of science! https://laforetdessciences.wordpress.com
http://le-bars.net/yoann/fr/2018/03/1...

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Creation Music: myself
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Additional music on www.musopen.org:

The Carnival of the Animals by Camille Saint-Saëns with the Seattle Youth Symphony
https://musopen.org/music/1454-the-ca...
Introduction
Aquarium

Danse Macabre, Op. 40 by Camille Saint-Saëns with the University of Chicago Orchestra
https://musopen.org/music/1462-danse-...

The Nutcracker, Dance of the Sugar Plum Fairy, Pyotr Ilyich Tchaikovsky (European Archive)
https://musopen.org/music/2204-the-nu...

L'estate III. Allegro (Summer), Antonio Vivaldi by John Harrison
https://musopen.org/music/14910-the-f...

Hungarian Dance No. 5, Johannes Brahms by Fulda Symphonic Orchestra
https://musopen.org/music/181-21-hung...

Swan Lake Op. 20 - Act II Pt. 1 by Pyotr Ilyich Tchaikovsky (European Archive)
https://musopen.org/music/42995-swan-...