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COSMOS: A SPACETIME ODYSSEY: Host Neil deGrasse Tyson travels to the Earth of the Carboniferous, where dragonflies have two-foot wingspans and plants soar a hundred feet high in the all-new “The Lost Worlds of Planet Earth” episode of COSMOS: A SPACETIME ODYSSEY airing Sunday, May 4 (9:00-10:00 PM ET/PT) on FOX and Monday, May 5 (9:00-10:00 PM ET/PT) on Nat Geo.