Why are printers so bad? When do you change the hair color on your ID? Does NASA fake the color of Mars? Why is Venus hotter than Mercury? How do I tell people I don't work for free? What do I do with peed-on lettuce? Hank Green and John Green have answers!

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Join us for monthly livestreams at patreon.com/dearhankandjohn.

Follow us on Twitter! twitter.com/dearhankandjohn

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