• NOVA -- The Sandstone Top of the Canyon
    The Sandstone Top of the Canyon
    This is not the easiest thing to do—especially in a 100 degree heat—but ...
    Air Date 10/21/2015
    0:01:15
  • NOVA -- Rockies 2.0
    Rockies 2.0
    But why is it that these layers that were once horizontal are now standing on ...
    Air Date 10/21/2015
    0:02:00
  • NOVA -- Tearing North America Apart
    Tearing North America Apart
    I’m looking a map of the Midwest of the United States and I’m seeing is the ...
    Air Date 10/21/2015
    0:01:01
  • NOVA -- Fossilized Sand Dunes
    Fossilized Sand Dunes
    This is Zion Canyon. Its 2000-foot sandstone cliffs are among the tallest of ...
    Air Date 10/21/2015
    0:01:15
  • NOVA -- Volcanoes of Sand
    Volcanoes of Sand
    What we found were strangely regular circles in the sandstone. Some of them ...
    Air Date 10/21/2015
    0:01:33
  • NOVA -- Manhattan Skyline
    Manhattan Skyline
    It's actually the geology that gives this very American city its very particular ...
    Air Date 10/21/2015
    0:00:52
  • NOVA -- Making North America: Human Preview
    Making North America: Human Preview
    How has the land shaped our lives, from the arrival of the first Americans up ...
    0:00:30
  • NOVA -- New York's Mountains
    New York's Mountains
    Today these steel and concrete giants dominate New York’s skyline.
    Air Date 10/21/2015
    0:01:13
  • NOVA -- Fossil-Filled Limestone
    Fossil-Filled Limestone
    About a thousand feet below the rim of the canyon…the rock changes to ...
    Air Date 10/21/2015
    0:00:54
  • NOVA -- Rock Time Capsules
    Rock Time Capsules
    This place is a paradise for geologists and one of our national treasures. It ...
    Air Date 10/21/2015
    0:01:18
  • NOVA -- Manhattan Schist
    Manhattan Schist
    All over the city you can see outcrops of bedrock. It’s called Manhattan ...
    Air Date 10/21/2015
    0:01:13
  • NOVA -- Semi-Precious Pebbles
    Semi-Precious Pebbles
    Where you find agates, volcanoes, the source of the gas bubbles, are usually not ...
    Air Date 10/21/2015
    0:00:57
  • NOVA -- Making North America: Life Preview
    Making North America: Life Preview
    How did massive volcanic eruptions, inland seas, and land bridges pave the way ...
    0:00:30
  • NOVA -- CyberWar Threat
    S42 E17: CyberWar Threat
    As internet connections multiply so do points of attack and risks to national ...
    Air Date 10/14/2015
    0:53:10
  • NOVA -- Secrets of Noah's Ark
    S42 E12: Secrets of Noah's Ark
    A team attempts to build the flood boat using inscriptions from an ancient clay ...
    Air Date 10/7/2015
    0:53:09
  • NOVA -- CyberWar Threat Preview
    CyberWar Threat Preview
    As internet connections multiply so do points of attack and risks to national ...
    0:00:30
  • NOVA -- Secrets of Noah's Ark Preview
    Secrets of Noah's Ark Preview
    A team attempts to build the flood boat using inscriptions from an ancient clay ...
    0:00:30
  • NOVA -- Arctic Ghost Ship
    S42 E16: Arctic Ghost Ship
    An astonishing find could solve the mystery of Sir John Franklin’s lost ...
    Air Date 9/23/2015
    0:53:10
  • NOVA -- Dawn of Humanity
    S42 E15: Dawn of Humanity
    Deep in a South African cave, an astounding discovery reveals clues to what made ...
    Air Date 9/10/2015
    1:53:07
  • NOVA -- Making North America Sneak Peek
    S42 E20: Making North America Sneak Peek
    Host Kirk Johnson explores how the continent was shaped—and how it shaped us. ...
    0:04:03
  • NOVA -- Dawn of Humanity Preview
    S42 E15: Dawn of Humanity Preview
    Deep in a South African cave, an astounding discovery reveals clues to what made ...
    0:00:30