Series: NOVA

Discover how predictions underpin many aspect of our lives and why some succeed while others fail.

Almost a century ago, paleontologists found fossil bones from a dinosaur that was bigger than Tyrannosaurus rex. The Spinosaurus fossils were destroyed in a WWII bombing raid. Now, the discovery of new bones in Morocco is reopening the investigation into this epic beast. Follow the paleontologists who are reconstructing this terrifying carnivore, a 53-foot-long behemoth with a huge dorsal sail, scimitar-like claws and superjaws. Bringing together experts in paleontology, geology, climatology and paleobotany, this special brings to life the lost world over which Spinosaurus reigned more than 65 million years ago.

An explosion of private companies are developing new technologies to bring space closer than ever.

Discover how forces of almost unimaginable power gave birth to the continent of North America.

Hear Apollo astronauts and engineers tell the inside story of how the first mission to the moon, Apollo 8, pioneered groundbreaking technologies that would pave the way to land a man on the moon and win the space race.

An intimate portrait of the American hero features interviews with Armstrong's family and friends.

Join scientists on a quest to better comprehend the workings of the weather and climate change.

Scientists peer more deeply into the sleeping brain and discover just how powerful sleep can be.

Explore the mysteries of how life evolved in North America, from the origins to iconic dinosaurs to giant marine reptiles swimming in an ancient sea that once split the continent in two, to the arrival of humans.

Researchers use the science of animal cognition to learn how birds understand the world around them.

Peer under the hood of the autonomous automotive industry to learn how exactly driverless cars work.

Researchers use the science of animal cognition to learn how dogs understand the world around them.

Discover the challenges faced and the wealth uncovered as humans take over the continent.

Join doctors on the front lines of the fight against COVID-19 as they strategize to stop the spread.

Throughout the animal kingdom, some of the cleverest creatures - including humans - seem to be those who live in complex social groups, like dolphins, elephants and apes.

Sixty-six million years ago, an asteroid wiped out the dinosaurs in a fiery global catastrophe. An amazing new trove of fossils reveals how mammals took over, ultimately evolving into the huge array of species, including us, that rule Earth today.

Uncover the bizarre history of the poles, from miles-thick ice sheets to warm polar forests.

Did humans ever domesticate felines? Science sheds light on a relationship that predates history