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Nova Previous Broadcasts

Building Wonders: Hagia Sophia - Istanbul's Ancient Mystery (Episode #4204)

KQED 9: Wed, Jan 17, 2018 -- 9:00 PM

The soaring dome of Hagia Sophia dominates Istanbul's skyline. Whether serving as Christian church, Islamic mosque, or secular museum, this magnificent building has inspired reverence and awe. For eight hundred years, it was the largest enclosed building in the world; the Statue of Liberty can fit beneath its dome with room to spare. How has it survived its location on one of the world's most active seismic faults, which has inflicted a dozen devastating earthquakes since it was built in 537 AD? As Istanbul braces for the next big quake, a team of architects and engineers is urgently investigating Hagia Sophia's seismic secrets.
Nova follows the team's discoveries as they examine the building's unique structure and other ingenious design strategies that have insured the dome's survival. At the climax to the show, the engineers build a massive 8-ton model of the building's core structure, place it on a motorized shake table and hit it with a series of simulated quakes, pushing it collapse -a fate that the team is determined to avoid in the real world. The Unshakeable Hagia Sophia is a detective story that reveals how this architectural wonder has proven so resilient for so long, and how it came to serve as a proud expression for the great civilizations that adopted it as a symbol.

Repeat Broadcasts:

  • KQED World: Fri, Jan 19, 2018 -- 11:00 AM
  • KQED World: Fri, Jan 19, 2018 -- 5:00 AM
  • KQED World: Thu, Jan 18, 2018 -- 4:00 PM
  • KQED 9: Thu, Jan 18, 2018 -- 3:00 AM

Black Hole Apocalypse - Part 1 and 2 (Episode #4501)

KQED World: Thu, Jan 11, 2018 -- 4:00 PM

Join astrophysicist Janna Levin and others as they hunt for clues about the nature of black holes.

Repeat Broadcasts:

  • KQED World: Fri, Jan 12, 2018 -- 11:00 AM
  • KQED World: Fri, Jan 12, 2018 -- 5:00 AM

Black Hole Apocalypse - Part 1 and 2 (Episode #4501)

KQED 9: Wed, Jan 10, 2018 -- 9:00 PM

Join astrophysicist and novelist Janna Levin on a mind-blowing voyage to the frontiers of black hole science, which is shining new light on the most powerful and mysterious objects in the universe.

Repeat Broadcasts:

  • KQED 9: Thu, Jan 11, 2018 -- 3:00 AM

Invisible Universe Revealed (Episode #4208)

KQED 9: Wed, Jan 3, 2018 -- 9:00 PM

25 years ago, NASA launched one of the most ambitious experiments in the history of astronomy: the Hubble Space Telescope. In honor of Hubble's landmark anniversary, Nova tells the remarkable story of the telescope that forever changed our understanding of the cosmos and our place in it.
From its inception through its early days, when a one-millimeter engineering blunder turned the telescope into an object of ridicule, to the five heroic astronaut missions that returned Hubble to the cutting edge of science, Nova hears from the scientists and engineers on the front line who tell the amazing Hubble story as never before. This single telescope has helped astronomers pinpoint the age of the universe, revealed the birthplace of stars and planets, advanced our understanding of dark energy and cosmic expansion, and uncovered black holes lurking at the heart of galaxies. For more than a generation, Hubble's stunning images have brought the beauty of the heavens to millions, revealing a cosmos richer and more wondrous than we ever imagined. Join Nova for the story of this magnificent machine and its astonishing discoveries.

Repeat Broadcasts:

  • KQED World: Fri, Jan 5, 2018 -- 11:00 AM
  • KQED World: Fri, Jan 5, 2018 -- 5:00 AM
  • KQED World: Thu, Jan 4, 2018 -- 4:00 PM
  • KQED Plus: Thu, Jan 4, 2018 -- 11:00 AM
  • KQED 9: Thu, Jan 4, 2018 -- 3:00 AM
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TV Technical Issues

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    • Audio Issue KQED DT 9.1 /25.1

      UPDATE: Audio has been restored, please report any issues!  If you?re still experiencing audio issues, you may need to rescan your television. Visit kqed.org/54move to learn how. Thank you for your patience while we resolve the issue!

    • KQED will no longer broadcast the KQEH signal from Monument Peak Tower effective 1/17/2018

      KQED will be removing its over-the-air television signal from the Monument Peak Tower in the San Jose area on January 17, 2018 (Note: this maintenance was previously scheduled for December 15, 2017). KQED will now broadcast our full suite of channels (KQED 9, KQED Plus, KQED World and PBS Kids) on Channel 9 and 54 […]

    • KQED LIFE OFF AIR Friday, December 15

      KQED will no longer offer the KQED Life channel beginning Friday, December 15. Several of the most popular exercise, cooking and lifestyle programs exclusive to KQED Life will now be scheduled on KQED Plus and KQED 9, where they can be experienced by more viewers. View/Download Schedule

To view previous issues and how they were resolved, go to our TV Technical Issues page.

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KQED World

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