NOVA

Arctic Sinkholes Preview

Colossal explosions shake a remote corner of the Siberian tundra, leaving behind massive craters. In Alaska, a huge lake erupts with bubbles of inflammable gas. Scientists are discovering that these mystifying phenomena add up to a ticking time bomb, as long-frozen permafrost melts and releases vast amounts of methane, a potent greenhouse gas.

Arctic Sinkholes Preview

30s

  • Great American Eclipse: asset-mezzanine-16x9

    Great American Eclipse

    S51 E6 - 53m 34s

    Explore the spectacular cosmic phenomenon of a total solar eclipse. In April 2024, the Moon’s shadow is sweeping from Texas to Maine, as the U.S. witnesses its last total eclipse until 2044, and scientists scramble to unlock the secrets of our Sun.

  • A.I. Revolution: asset-mezzanine-16x9

    A.I. Revolution

    S51 E5 - 53m 30s

    A.I. tools like ChatGPT seem to think, speak, and create like humans. But what are they really doing? From cancer cures to Terminator-style takeovers, leading experts explore what A.I. can – and can’t – do today, and what lies ahead.

  • Hunt for the Oldest DNA: asset-mezzanine-16x9

    Hunt for the Oldest DNA

    S51 E4 - 53m 10s

    For decades, scientists have tried to unlock the secrets of ancient DNA. Follow the dramatic quest to recover DNA millions of years old and reveal a lost world from before the last Ice Age.

WETA Passport

Stream tens of thousands of hours of your PBS and local favorites with WETA Passport whenever and wherever you want. Catch up on a single episode or binge-watch full seasons before they air on TV.