NOVA Season 23 Episodes
Season 23 Episode Guide
Episode 1 - Picture a ScientistWomen make up less than a quarter of STEM professionals in the United States, and numbers are even lower for women of color. But a growing group of researchers is exposing longstanding discrimination and making science more inclusive.
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Episode 2 - Reef RescueIf oceans continue to warm at the current pace, coral reefs could be wiped out by the end of the century. But scientists from around the globe are rushing to help corals adapt to a changing climate through assisted evolution. Follow scientists as they attempt to crossbreed heat-resistant corals, and even transplant corals’ algae, in a race to save the coral reefs from extinction.
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Episode 3 - Fighting for FertilityIn the United States, some 10% of people who wish to have children struggle with infertility. NOVA explores barriers to fertility, from the social to the biological, and the state of assisted reproductive technologies. Follow the journeys of people navigating challenges from structural inequalities and racism to falling sperm counts, egg freezing, and IVF.
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Episode 4 - Hindenburg: The New EvidenceOn May 6, 1937, the Hindenburg, the world’s largest airship, ignited in a giant fireball; this remains one of the biggest mysteries in aviation history. Now, new evidence shows the airship’s final seconds from a fresh angle and in unrivaled clarity. This program is a gripping, authoritative new investigation of one of history’s most iconic disasters.
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Episode 5 - Great Electric Airplane RaceElectric cars seem increasingly likely to replace our gas-guzzling vehicles. Could a new generation of emission-free electric planes do the same to the polluting airliners in our skies--a major step in the fight against climate change? NOVA looks at an array of new electric planes and takes a ride in some prototypes. Will the dream of super-quiet, super-efficient airliners become a reality?
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Episode 6 - Ship That Changed the WorldFive centuries ago, the Age of Exploration and Europe’s imperial colonization of far-off lands was launched by a revolution in ship design that made long-distance ocean voyages practical. But exactly how this momentous innovation happened eludes historians. Now, the excavation of a rare intact wreck discovered off the coast of Sweden offers vital new clues to a maritime mystery.
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Episode 7 - Bat SuperpowersBats have been implicated in deadly epidemics such as COVID-19 and Ebola, yet scientists are discovering evidence that they may hold a key to a longer and healthier life. From caves in Thailand and Texas to labs around the globe, NOVA meets the scientists who are decoding the superpowers of the bat.
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Episode 8 - The Cannabis QuestionAs state-legalized cannabis spreads, NOVA investigates the latest scientific evidence for its potential benefits and risks, and how criminalization has disproportionately harmed communities of color.
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Episode 9 - Particles UnknownOutnumbering atoms a billion to one, neutrinos are the universe’s most common yet most elusive and baffling particle. NOVA joins a global team of neutrino hunters whose discoveries may change our understanding of how the universe works.
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Episode 10 - Arctic DriftJoin scientists on the most ambitious Arctic research expedition ever. Facing hungry polar bears, perilous sea ice cracks, and brutal cold, the team strives to understand the forces that are changing the region--and the world--forever.
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