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Carolyn Porco is back, and she’s brought her friend, “Bad-ass Science Groupie” Sean Ono Lennon. Together with Chuck Nice, they answer Cosmic Queries about art, science, and math; the Anthropocene Age; and the lack of civility on Twitter. Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.