Can Moons Have Moons?

After the discovery of supersized exomoon candidates, many have been wondering - can moons have moons? And could those also have moons?! Today we dive into this fun little question and learn about the limits of satellites.

Written & presented by Prof David Kipping

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::References::
► Kollmeier, J. & Raymond, S. (2019), "Can Moons Have Moons?", MNRAS, 483, 80: https://arxiv.org/abs/1810.03304
► Also check out Sean Raymond's excellent blog article! https://planetplanet.net/2018/10/09/c...

::Music::
Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/..., or with permission from the artist
► Brad Hill - There Is but One Good (00:00) [https://open.spotify.com/album/4pmiXc...]
► Falls - Life in Binary (4:08)
► Chris Zabriskie - Cylinder Four (8:50)
► Joachim Heinrich - Stjarna (12:05)
► Indive - Trace Correction (14:54)

::Film/TV clips used::
► Sunshine (2007) Fox Searchlight Pictures
► First Man (2017) Universal Pictures
► Another Earth (2011) Fox Searchlight Pictures
► Moonfall (2022) Lionsgate
► Agora (2009) Focus Features International
► Outro clip by Sloan Digital Sky Survey, Berkeley Lab, Miguel Aragon, Mark Subbarao & Alex Szalay

::Chapters::
00:00 Introduction
02:28 How are moons lost?
04:08 Tides
06:22 Moon Hill Spheres
07:19 Analytic Results
09:03 Iapetus
10:12 Giant exomoons
11:46 Moon moon moons
13:55 Final thoughts
14:54 Outro & credits

#MoonMoons #SubMoons #CoolWorlds