Uploaded August 2017 | Updated September 2026, 5 minutes ago

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40 fun facts on Jupiter's Galilean moons; 10 facts each. For more solar system 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 my 2013 editions of these videos can be found here: youtube.com/playlist?list=PLrLu47k41a8TbdKNhPm3gzaJE7iu0rxIr

Song: "A Sad Pathway" by Musicshake

Io sources:
• solarsystem.nasa.gov/planets/io/indepth
• space.com/16419-io-facts-about-jupiters-volcanic-moon.html
• space-facts.com/io

Europa sources:
• solarsystem.nasa.gov/planets/europa/indepth
• space.com/15498-europa-sdcmp.html
• space-facts.com/europa
• theplanets.org/europa

Ganymede source:
• solarsystem.nasa.gov/planets/ganymede/indepth

Callisto sources:
• space-facts.com/callisto
• solarsystem.nasa.gov/planets/callisto/indepth
• space.com/16448-callisto-facts-about-jupiters-dead-moon.html

Sources for all:
• nasa.gov/sites/default/files/files/Moons_of_Jupiter_Lithograph.pdf
• solarsystem.nasa.gov/planets/jupiter/moons
• sen.com/features/the-biggest-moons-in-the-solar-system