Neil deGrasse Tyson On If There's Really Life On Mars + Rach's 3-Ingredient Toasted Cacio e Pepe

Rach is hanging with Neil deGrasse Tyson – and he’s revealing if there is really life on Mars (?!) and showing off a 3D food printer that can “print” chocolate Then, style and entertaining expert Clinton Kelly is giving us lessons in the formula for chic style and pattern mixing. Plus, Grammy award-winning country star Rory Feek is here with his adorable 4-year-old daughter, and Rachael’s making a three-ingredient supper: Toasted Cacio e Pepe.

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