Up Next
Back to Show
Watch Preview
NOVA
Nazca Desert Mystery
Season 49
Episode 17
One of the world’s greatest ancient enigmas, the Nazca lines are a dense network of criss-crossing lines, geometric shapes, and animal figures etched across 200 square miles of Peruvian desert. Who created them and why? Ever since they were rediscovered in the 1920s, scholars and enthusiasts have raised countless theories about their purpose.
Support Provided By
53:31
Scientists look to geoengineering and other methods to cool the planet.
53:21
Can bringing predators—and fear—back into an ecosystem help restore its natural balance?
Unlock with PBS Passport
53:21
Follow the epic journey of dog domestication and see what science says about dogs’ love.
1:52:46
Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.
53:30
Discover the science behind Leonardo da Vinci's masterpieces—and Mona Lisa's iconic smile.
Unlock with PBS Passport
53:25
Can new engineering techniques help prevent deadly bridge collapses?
53:15
Amazing fossils reveal how mammals took over after an asteroid wiped out the dinosaurs.
Unlock with PBS Passport
53:32
Discover why scientists and entrepreneurs alike have their sights set on the Moon again.
53:22
In the shadow of Vesuvius and Pompeii, a lesser-known volcano puts Naples at risk.
Unlock with PBS Passport
53:34
New technologies are promising a new renaissance in space travel.
53:23
New archeological evidence shows the stunning engineering of the Great Pyramid of Giza.