Season 47

Video thumbnail: NOVA The Truth About Fat

NOVA

The Truth About Fat

Could it be that body fat has more to do with biological processes than personal choices?

The Truth About Fat

Video thumbnail: NOVA Cuba's Cancer Hope

NOVA

Cuba's Cancer Hope

Can Cuba's innovative lung cancer vaccines give new hope to patients across the world?

Cuba's Cancer Hope

Video thumbnail: NOVA Mysteries of SleepPassport

NOVA

Mysteries of Sleep

Why do we sleep? And what does sleep have to do with memory, trauma, and our emotions?

Mysteries of Sleep

Video thumbnail: NOVA Cat Tales

NOVA

Cat Tales

Goddess, demon, house pet? What does science say about the human relationship with cats?

Cat Tales

Video thumbnail: NOVA Dog Tales

NOVA

Dog Tales

Follow the epic journey of dog domestication and see what science says about dogs’ love.

Dog Tales

Video thumbnail: NOVA Polar Extremes

NOVA

Polar Extremes

Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.

Polar Extremes