Dr. Neil deGrasse Tyson is a celebrity astrophysicist, Director of The Hayden Planetarium in NYC, host of "Cosmos: A Spacetime Odyssey" and the "Star Talk" radio show, and the guy we love to blame for Pluto not being a planet anymore.

On this episode of YLM, Rachel talks with one of the greatest scientific voices of our time about his love of melted butter, the time he almost became a stripper, and what foods Neil would take with him if he could travel to space.

Speaking of space travel, former NASA Astronaut & Hubble Space Telescope repairman Mike Massimino tells Rachel all about eating in zero gravity, the last meal he ate before his first shuttle launch, and what food options are available for a crew orbiting Earth.

Thanks also to lobster expert Barton Seaver, author of "For Cod and Country."

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