Fantastic video, the methods are explained super clearly.
Also highly recommend David Butler's "How far away is it" video series. He covers the same methods, and spends a good amount of time discussing phenomena along the way (star life cycles, magnetars, black holes, galaxy mergers, etc).
Anyone looking for additional recommendations : the popular "A short history of nearly everything" by Bill Bryson covers in a historical context how these planetary distances were calculated
Also highly recommend David Butler's "How far away is it" video series. He covers the same methods, and spends a good amount of time discussing phenomena along the way (star life cycles, magnetars, black holes, galaxy mergers, etc).
https://www.youtube.com/watch?v=HgNJwg2GISs&list=PLpH1IDQEoE...