Dinosaur skeleton

Bigger Than T. rex

Almost a century ago, paleontologists found the first tantalizing hints of a monster even bigger than Tyrannosaurus Rex, perhaps the largest predator ever to walk the Earth: spectacular fossil bones from a dinosaur dubbed Spinosaurus. But the fossils were completely destroyed during a World War II Allied bombing raid, leaving only drawings, lots of questions, and a mystery: What was Spinosaurus? Now, the discovery of new bones in a Moroccan cliff face is reopening the investigation into this epic beast. What did it feed on and how? Why did it grow so big? We follow the paleontologists who are reconstructing this terrifying carnivore piece by piece, revealing a 53-foot-long behemoth with a huge dorsal sail, enormous, scimitar-like claws, and massive superjaws, tapered toward the front like a crocodile, hosting an army of teeth. It is a painstaking puzzle, and it is missing many of its pieces. NOVA follows researchers on the hunt for more fossils, tracing ancient history along with the very modern drama of how the bones of the Spinosaurus were discovered, seized, bombed, stolen and smuggled across international borders. Bringing together experts in paleontology, geology, climatology and paleobotany, this NOVA/National Geographic special brings to life the lost world over which Spinosaurus reigned more than 65 million years ago.

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The Planets: Jupiter

Jupiter's massive gravitational force made it a wrecking ball when it barreled through the early solar system. But it also shaped life on Earth, delivering comets laden with water - and perhaps even the fateful asteroid that wiped out the dinosaurs.

  • 2020-01-19T14:00:00-08:00
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  • 2020-01-19T17:00:00-08:00
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  • 2020-01-20T06:00:00-08:00
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The Planets: Saturn

NASA's Cassini explores Saturn for 13 years, looping through its icy rings and flying by its moons. The probe captures stunning ring-moon interactions, but when it finds the ingredients for life on the moon Enceladus, a bittersweet decision is made.

  • 2020-01-26T14:00:00-08:00
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  • 2020-01-26T17:00:00-08:00
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  • 2020-01-27T06:00:00-08:00
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The Planets: Ice Worlds

In the far reaches of the solar system, Uranus and Neptune dazzle with unexpected rings, supersonic winds and dozens of moons. And NASA's New Horizons gets a stunning up-close view of Pluto before venturing deep into the Kuiper Belt.

  • 2020-02-02T14:00:00-08:00
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  • 2020-02-02T17:00:00-08:00
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  • 2020-02-03T06:00:00-08:00
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Polar Extremes

Following a trail of fossils found in all the wrong places -- beech trees in Antarctica, redwoods and hippo-like mammals in the Arctic -- uncover the bizarre history of the poles, from miles-thick ice sheets to warm polar forests teeming with life.

  • 2020-02-09T14:00:00-08:00
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Dog Tales

Dogs have long been dependable companions by our sides. But it wasn't always that way-and a look at their closest living relative, the wolf, makes it clear why. Researchers reveal how humans tamed fearsome canines over tens of thousands of years, and how modern dog intelligence and behaviors have made them indispensable companions.

  • 2020-02-16T14:00:00-08:00
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  • 2020-02-16T17:00:00-08:00
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  • 2020-02-17T06:00:00-08:00
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