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In this Cosmic Queries episode, Neil deGrasse Tyson gets all wibbly-wobbly, timey-wimey as he answers fan questions about time travel with Colin Jost, Saturday Night Live’s new Weekend Update anchor. Image courtesy of Wikimedia Commons, Credit: aussiegall from Sydney, Australia. Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to new episodes ad-free and a whole week early.