You’ve heard about planets, stars, galaxies, and other “types” of astronomical objects on the show -- but what about the objects that defy our classification schemes? Will discusses how a mysterious system of massive planets(?) came to be, Alex puts on his thinking cap and tells us about the Universe’s biggest hat, and we top it all off with a discussion of the benefits and shortcomings of classifications in astronomy.
 
Astrobites: 
astrobites.org/2021/02/05 
astrobites.org/2020/03/07
 
Classifying the Cosmos: https://www.springer.com/gp/book/9783030103798
Book review of Classifying the Cosmos: https://astrobites.org/2019/11/21/book-review-classifying-the-cosmos/
 
System Sounds: https://www.system-sounds.com/
Space sound: https://www.youtube.com/watch?v=PHNeDlZp-Uk&t=3s