Sunlight shines through a gap in a rock formation. | "Making North America: Life"

Making North America: Life

Discover the surprising intertwined story of life and the landscape in North America-from origins to iconic dinosaurs to giant marine reptiles swimming in an ancient sea that once split the continent in two.

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Can We Cool The Planet?

As global temperatures rise, scientists are exploring geoengineering solutions, from planting trees to sucking carbon out of the air to physically blocking out sunlight. But would it work? And what are the risks of engineering Earth's climate?

  • 2020-10-30T05:00:00-07:00
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  • 2020-11-01T14:00:00-08:00
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  • 2020-11-01T17:00:00-08:00
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Colosseum - Roman Death Trap

The Colosseum is a monument to Roman imperial power and cruelty. Its graceful lines and harmonious proportions concealed a highly efficient design and advanced construction methods that made hundreds of arches out of 100,000 tons of stone. In its elliptical arena, tens of thousands of gladiators, slaves, prisoners and wild animals met their deaths. Ancient texts report lions and elephants emerging from beneath the floor, as if by magic, to ravage gladiators and people condemned to death.

  • 2020-11-06T04:00:00-08:00
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  • 2020-11-08T14:00:00-08:00
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  • 2020-11-08T17:00:00-08:00
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Petra - Lost City of Stone

More than two thousand years ago, the thriving city of Petra rose up in the bone-dry desert of what is now Jordan. An oasis of culture and abundance, the city was built by wealthy merchants whose camel caravans transported incense and spices across hundreds of miles from the Arabian Gulf. They carved spectacular temple-tombs into its soaring cliffs, raised a monumental Great Temple at its heart, and devised an ingenious system that channeled water to vineyards, bathhouses, fountains, and pools.

  • 2020-11-13T04:00:00-08:00
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  • 2020-11-15T14:00:00-08:00
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  • 2020-11-15T17:00:00-08:00
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Building Wonders: Hagia Sophia - Istanbul's Ancient Mystery

Istanbul's magnificent Hagia Sophia has survived on one of the world's most active seismic faults, which has inflicted a dozen devastating earthquakes since Hagia Sophia was built in 537 AD. As Istanbul braces for the next big quake, a team of architects and engineers is 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.

  • 2020-11-20T04:00:00-08:00
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  • 2020-11-22T14:00:00-08:00
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  • 2020-11-22T17:00:00-08:00
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Saving Notre Dame

When the Notre Dame cathedral caught fire in April 2019, Paris came perilously close to losing over 800 years of history. As engineers rebuild, researchers use cutting-edge technology to piece together what happened and restore the cathedral.

  • 2020-11-27T04:00:00-08:00
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