48 - 1Secrets in Our DNA Jan. 14, 2021
48 - 2Beyond the Elements: Reactions Feb. 03, 2021
48 - 3Beyond the Elements: Indestructible Feb. 10, 2021
48 - 4Beyond the Elements: Life Feb. 17, 2021
48 - 5Looking for Life on Mars Feb. 24, 2021
48 - 6Picture a Scientist/ Search Engine Breakdown Apr. 14, 2021
48 - 7Reef Rescue Apr. 21, 2021
48 - 8Fighting for Fertility May. 12, 2021
48 - 9Hindenburg: The New Evidence May. 19, 2021
48 - 10Great Electric Airplane Race May. 26, 2021
48 - 11Ship That Changed the World Jun. 02, 2021
48 - 12Bat Superpowers Sep. 15, 2021
48 - 13The Cannabis Question Sep. 29, 2021
48 - 14Particles Unknown Oct. 06, 2021
48 - 15Arctic Drift Oct. 13, 2021
48 - 16Edible Insects Oct. 20, 2021
48 - 17NOVA Universe Revealed: Age of Stars Oct. 27, 2021
48 - 18NOVA Universe Revealed: Milky Way Nov. 03, 2021
48 - 19NOVA Universe Revealed: Alien Worlds Nov. 10, 2021
48 - 20NOVA Universe Revealed: Black Holes Nov. 17, 2021
48 - 21NOVA Universe Revealed: Big Bang Nov. 24, 2021
48 - 22High-Risk High-Rise Jan. 05, 2022
48 - 23Butterfly Blueprints Jan. 12, 2022
48 - 24Alaskan Dinosaurs Jan. 19, 2022
48 - 25Ancient Maya Metropolis Jan. 26, 2022