Nova Previous Broadcasts

Decoding The Weather Machine (Episode #4507)

KQED 9: Wed, Apr 18, 2018 -- 8:00 PM

Climate change is arguably the defining challenge of our time. Join scientists on a quest to better comprehend the workings of the weather and climate, and see how they're finding that we can be resilient-even thrive-in the face of enormous change.

Repeat Broadcasts:

  • KQED World: Fri, Apr 20, 2018 -- 11:00 AM
  • KQED World: Fri, Apr 20, 2018 -- 5:00 AM
  • KQED World: Thu, Apr 19, 2018 -- 4:00 PM
  • KQED 9: Thu, Apr 19, 2018 -- 2:00 AM

Secrets of the Sun (Episode #3907H)

KQED Plus: Sun, Apr 15, 2018 -- 10:00 PM

It contains 99.9% of all the matter in our solar system and sheds hot plasma at nearly a million miles an hour. The temperature at its core is a staggering 27 million degrees Fahrenheit. It convulses, it blazes, it sings. You know it as the sun. Scientists know it as one of the most amazing physics laboratories in the universe. Now, with the help of new spacecraft and Earth-based telescopes, scientists are seeing the Sun as they never have before and even re-creating what happens at the very center of the Sun in labs here on Earth. Their work will help us understand aspects of the sun that have puzzled scientists for decades. But more critically, it may help us predict and track solar storms that have the power to zap our power grid, shut down telecommunications, and ground global air travel for days, weeks, or even longer. Such storms have happened before-but never in the modern era of satellite communication. Thid episode reveals a bright new dawn in our understanding of our nearest star-one that might help keep our planet from going dark.

Repeat Broadcasts:

  • KQED Plus: Mon, Apr 16, 2018 -- 4:00 AM

Holocaust Escape Tunnel (Episode #4407)

KQED 9: Wed, Apr 11, 2018 -- 9:00 PM

Engineers race to build a massive dome to contain the crumbling remains of Chernobyl's reactor.

Repeat Broadcasts:

  • KQED World: Thu, Apr 12, 2018 -- 3:00 PM
  • KQED Plus: Thu, Apr 12, 2018 -- 11:00 AM
  • KQED 9: Thu, Apr 12, 2018 -- 3:00 AM
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