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• S48.E1 ∙ Secrets in Our DNA
• S48.E2 ∙ Beyond the Elements: Reactions
• S48.E3 ∙ Beyond the Elements: Indestructible
• S48.E4 ∙ Beyond the Elements: Life
• S48.E5 ∙ Looking for Life on Mars
• S48.E6 ∙ Picture a Scientist
• S48.E7 ∙ Reef Rescue
• S48.E8 ∙ Fighting for Fertility
• S48.E9 ∙ Hindenburg: The New Evidence
• S48.E10 ∙ Great Electric Airplane Race
• S48.E11 ∙ Ship That Changed the World
• S48.E12 ∙ Bat Superpowers
• S48.E13 ∙ The Cannabis Question
• S48.E14 ∙ Particles Unknown
• S48.E15 ∙ Arctic Drift
• S48.E16 ∙ Edible Insects
• S48.E17 ∙ Universe Revealed: Age of Stars
• S48.E18 ∙ Universe Revealed: Milky Way
• S48.E19 ∙ Universe Revealed: Alien Worlds
• S48.E20 ∙ Universe Revealed: Black Holes
• S48.E21 ∙ Universe Revealed: Big Bang
• S48.E22 ∙ High-Risk High-Rise
• S48.E23 ∙ Butterfly Blueprints
• S48.E24 ∙ Alaskan Dinosaurs
• S48.E25 ∙ Ancient Maya Metropolis
• S48.E101 ∙ Search Engine Breakdown