Apart from Cosmos, Carl Sagan didn't leave much recording-stuff behind. But he left a recording of "Pale Blue Dot," and it's found itself rather popular on Mr. Internet, especially to aspiring video editors. Heck, perhaps they've overdone it. But the first time I heard this little narration, things started becoming clearer.
These videos inspired me to broaden my thinking a few years ago, when I still lived in Hope, BC. It wasn't long until I was renting Cosmos out from the library.
The Internet Archive
YouTube: ephemeral ideas