Why don't we have mouth roombas? Is the universe full of chickens? What scientific advances are happening? What was the first internet purchase? How do I convince my parents to let me check a bag? What is Twitter? What's the difference between a telescope and a camera? Are sea monkeys natural? Hank Green and Roman Mars have answers!

If you're in need of dubious advice, email us at [email protected].

Join us for monthly livestreams and an exclusive weekly podcast at patreon.com/dearhankandjohn.

Follow us on Twitter! twitter.com/dearhankandjohn

If you're in need of dubious advice, email us at [email protected].

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

Follow us on Twitter! twitter.com/dearhankandjohn

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.