Uploaded September 2017 | Updated September 2026, 4 hours ago

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Fast facts on Jupiter's Ananke group, plus 5 traditional facts on two of the satellites. 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

So little information is known about these moons that I chose to do a "fast facts" format for most of them. I wish I could have had more to say, but I wanted to at least mention each one. Credits to Jestr for most of the illustration; other images come from the Celestia astronomy program.

Song: "Shadow of Night" by Musicshake

Sources:
• whillyard.com/science-pages/our-solar-system/ananke-group.html
• solarsystem.nasa.gov/planets/iocaste/indepth
• solarsystem.nasa.gov/planets/harpalyke/indepth
• solarsystem.nasa.gov/planets/thyone/indepth
• solarsystem.nasa.gov/planets/euanthe/indepth
• solarsystem.nasa.gov/planets/euporie/indepth
• solarsystem.nasa.gov/planets/helike/indepth
• solarsystem.nasa.gov/planets/hermippe/indepth
• solarsystem.nasa.gov/planets/mneme/indepth
• solarsystem.nasa.gov/planets/orthosie/indepth
• solarsystem.nasa.gov/planets/thelxinoe/indepth
• solarsystem.nasa.gov/planets/s2003j03/indepth
• solarsystem.nasa.gov/planets/s2003j15/indepth
• solarsystem.nasa.gov/planets/s2003j16/indepth
• solarsystem.nasa.gov/planets/s2003j18/indepth
• solarsystem.nasa.gov/planets/ananke/indepth
• solarsystem.nasa.gov/planets/praxidike/indepth