Season 40

    Video thumbnail: NOVA Asteroid: Doomsday or Payday?Passport

    NOVA

    Asteroid: Doomsday or Payday?

    Will future asteroids trigger massive extinctions—or be mined for precious minerals?

    Asteroid: Doomsday or Payday?

    Video thumbnail: NOVA At the Edge of SpacePassport

    NOVA

    At the Edge of Space

    Can scientists unravel the mysterious phenomena that lurk between Earth and space?

    At the Edge of Space

    Video thumbnail: NOVA Oklahoma's Deadliest TornadoesPassport

    NOVA

    Oklahoma's Deadliest Tornadoes

    Hear stories from survivors of Moore’s tornado and meet scientists who stalk these storms.

    Oklahoma's Deadliest Tornadoes

    Video thumbnail: NOVA Manhunt—Boston BombersPassport

    NOVA

    Manhunt—Boston Bombers

    Which technologies worked in the race to track down the men behind the marathon attack?

    Manhunt—Boston Bombers

    Video thumbnail: NOVA Meteor StrikePassport

    NOVA

    Meteor Strike

    A meteor burst into a fireball over Siberia. Can we spot the next deadly asteroid in time?

    Meteor Strike

    Video thumbnail: NOVA Mind of a Rampage KillerPassport

    NOVA

    Mind of a Rampage Killer

    Can science help us understand why some people commit horrific acts of mass murder?

    Mind of a Rampage Killer

    Video thumbnail: NOVA Earth From Space

    NOVA

    Earth From Space

    Detailed satellite images reveal the web of connections that sustain life on Earth.

    Earth From Space

    Video thumbnail: NOVA Building Pharaoh's ChariotPassport

    NOVA

    Building Pharaoh's Chariot

    A team uncovers the advanced engineering behind an ancient Egyptian war machine.

    Building Pharaoh's Chariot

    Video thumbnail: NOVA Decoding NeanderthalsPassport

    NOVA

    Decoding Neanderthals

    Shared DNA reveals a deep connection with our long-vanished human cousins.

    Decoding Neanderthals

    Video thumbnail: NOVA Doomsday VolcanoesPassport

    NOVA

    Doomsday Volcanoes

    Could the explosion of Iceland's ticking time bombs cause cold and famine worldwide?

    Doomsday Volcanoes