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Editor’s Note: This is especially for Carl Sagan fans, of which I am a big one. As much as I admire the late, good doctor, I equally admire fun, earned irreverence. If you don’t know about the Pale Blue Dot, or its famous narration, you can check out my video here, and Dr. Sagan’s book of the same name here – John Cronin.

xkcd is the webcomic creation of Randall Munroe, an extraordinarily popular web presence whom we feature regularly on EarthDesk. He draws on science themes often and has been nominated for a Hugo Award twice, thanks to his loyal science fiction fan base.

Read more about Randall in this New York Times feature.