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by TeMPOraL 504 days ago
Since I have your attention - I figure this is still the best condensed ELI5 explainer of the history and methods used in search for exoplanets, and I keep sending this to anyone remotely interested in the topic:

https://www.youtube.com/watch?v=gai8dMA19Sw

(I also consider it to be the only true, original, canonical rendition of the Alladin song.)

It gets into the transit method around halfway through (at 3:43), and makes it glaringly obvious why this is the way to go, over tracking Doppler shifts. Still, this video is almost 8 years old (and neatly coincided with discovery of additional planets around TRAPPIST-1) - I wonder if there are new methods at play that are not covered here, and of course if the middle part still corresponds to how things are done?