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Air Date: Wed, Nov 11, 2020 9:00 PM
More than 2,000 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 who carved spectacular temple-tombs into its cliffs, raised a monumental Great Temple and devised an ingenious system that channeled water to vineyards, bathhouses, fountains and pools. But following a catastrophic earthquake and a slump in its desert trade routes, Petra’s unique culture faded and was lost to most of the world for nearly 1,000 years. Now, in a daring experiment, an archaeologist and sculptors team up to carve an iconic temple-tomb to find out how the ancient people of Petra built their city of stone.
Air Date: Wed, Oct 28, 2020 9:00 PM
NOVA Can We Cool the Planet? documents how, as global temperatures rise, scientists are exploring geoengineering solutions to solve the problem – from planting trees to sucking carbon out of the air to physically blocking out sunlight. And if any of these work, what are the risks of engineering Earth's climate?
Air Date: Wed, Oct 21, 2020 9:00 PM
NOVA Touching the Asteroid documents the mission of NASA spacecraft OSIRIS-REx as it attempts to reach out and grab a piece of an asteroid named Bennu and bring it back to Earth. The OSIRIS-REx team has just three chances to extend the spacecraft’s specialized arm, touch down for five seconds, and collect material from the surface of Bennu. NOVA takes us inside the mission that, if successful, could give scientists new insight into Earth’s origins.
Air Date: Wed, Oct 14, 2020 9:00 PM
NOVA Nature’s Fear Factor documents how the normal balance of competition and predation in Mozambique’s Gorongosa National Park was upended when a war wiped out the top predators. The remaining animals not only grew in numbers, but began veering outside their typical territories and feeding patterns. Could it be that it’s not just predators’ kills that keep other populations in check, but also the fear they inspire? NOVA joins a team of scientists as they reintroduce African wild dogs to Gorongosa to find out if restoring the park’s “landscape of fear” can also restore balance.
Air Date: Wed, Sep 30, 2020 9:00 PM
Just as writing changed the course of human history, the evolution of paper and printing revolutionized the spread of information. The printing press kicked off the Industrial Revolution that fast-tracked us to the current digital age. But as the 4,000-year-old tradition of penmanship falls out of favor, should we consider what might be lost in this pursuit of ever more efficient communication?
Air Date: Wed, Sep 23, 2020 9:00 PM
Where would we be without the world’s alphabets? Writing has played a vital role in the expansion and domination of cultures throughout history. But researchers are only now uncovering the origin story to our own alphabet, which may have gotten its beginnings in a turquoise mine 4,000 years ago. From the shape of the letter A to the role of writing in trade and storytelling, discover how the written word shaped civilization itself.
Air Date: Wed, Sep 9, 2020 9:00 PM
Scientists investigate the bizarre “intelligence” of slime molds, organisms which are neither plant nor animal. These single-celled blobs appear to learn and make decisions without a brain and can navigate mazes and create efficient networks. Can they also redefine cognition?
Air Date: Wed, Sep 9, 2020 8:00 PM
NOVA follows amazing scientific developments in gene therapy, culminating in our ability to make precise edits to human DNA.
Air Date: Wed, Aug 12, 2020 9:00 PM
Stunning new archaeological evidence provides clues about the Egyptians who built the Great Pyramid of Giza–and how they did it. Join researchers as they delve into the logbook of a work crew and discover how the massive project transformed Egypt.
Air Date: Wed, Aug 5, 2020 9:00 PM
Sixty-six million years ago, an asteroid wiped out the dinosaurs in a fiery global catastrophe. But we know little about how their successors, the mammals, recovered and took over the world. Now, hidden inside ordinary-looking rocks, an astonishing trove of fossils reveals a dramatic new picture of how rat-sized creatures ballooned in size and began to evolve into the vast array of species.
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