What would happen if a day was a minute? What if an asteroid hit a volcano that was ready to erupt? Would a rocket and a bullet go through Jupiter's center? How many countries would Earth have if they were all the size of Vatican City? Would you tell anyone if you found oil on Mars? Could a person eat a whole cloud? Hank Green and Randall Munroe have answers!

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

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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