• NOVA -- Five Steps of Volcanic Rock
    Five Steps of Volcanic Rock
    These falls are the record of a series of volcanic eruptions that happened in ...
    These falls are the record of a series of volcanic eruptions that happened in this area. So we have five steps in these falls, and you can think of each of those steps, each of these layers as another ...
    Air Date 10/21/2015
    0:00:26
  • NOVA -- Semi-Precious Pebbles
    Semi-Precious Pebbles
    Where you find agates, volcanoes, the source of the gas bubbles, are usually not ...
    Where you find agates, volcanoes, the source of the gas bubbles, are usually not far way. And just a stone’s throw from the beach—at Gooseberry Falls—I find a landscape made of nothing but ...
    Air Date 10/21/2015
    0:00:57
  • NOVA -- From Lava to Land
    From Lava to Land
    So how did North America and its fellow continents get started? To see what the ...
    So how did North America and its fellow continents get started? To see what the very first land might have looked like, I’m heading to a place far from our continent right in the middle of the ...
    Air Date 10/21/2015
    0:02:14
  • NOVA -- The Grand Canyon's Oldest Rocks
    The Grand Canyon's Oldest Rocks
    “This rock is more than 4000 feet below the rim of the canyon, and it’s one ...
    “This rock is more than 4000 feet below the rim of the canyon, and it’s one of the oldest rocks of them all. “ By measuring the radioactive elements in this Granodiorite—the rock here at the ...
    Air Date 10/21/2015
    0:00:19
  • NOVA -- Fossil-Filled Limestone
    Fossil-Filled Limestone
    About a thousand feet below the rim of the canyon…the rock changes to ...
    About a thousand feet below the rim of the canyon…the rock changes to limestones and it’s loaded with fossils. “I’ve got a little fossil coral in my hand. And it’s fossils like this that ...
    Air Date 10/21/2015
    0:00:54
  • 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 ...
    This is not the easiest thing to do—especially in a 100 degree heat—but it’s worth it. Every foot I descend takes me further back in time. ”The first layer you come to in this part of the ...
    Air Date 10/21/2015
    0:01:15
  • NOVA -- Rock Time Capsules
    Rock Time Capsules
    This place is a paradise for geologists and one of our national treasures. It ...
    This place is a paradise for geologists and one of our national treasures. It is, of course, the Grand Canyon. ‘That is a big hole’. And it gets me everytime. ‘Wow this is absolutely ...
    Air Date 10/21/2015
    0:01:18
  • NOVA -- Secrets of Noah's Ark
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    S42 E12: Secrets of Noah's Ark
    In 1948, a British pilot serving in Iraq acquired a clay tablet with an ...
    In 1948, a British pilot serving in Iraq acquired a clay tablet with an intriguing, 3,700 year-old inscription. The ancient writing tells the story of how the god Enki warns a Sumerian king named ...
    Air Date 10/7/2015
    0:53:09
  • NOVA -- Arctic Ghost Ship
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    S42 E16: Arctic Ghost Ship
    NOVA presents an exclusive breakthrough in the greatest unsolved mystery in ...
    NOVA presents an exclusive breakthrough in the greatest unsolved mystery in Arctic exploration. In 1845, British explorer Sir John Franklin set off to chart the elusive Northwest Passage, commanding ...
    Air Date 9/23/2015
    0:53:10
  • NOVA -- Dawn of Humanity
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    S42 E15: Dawn of Humanity
    NOVA and National Geographic present exclusive access to a unique discovery of ...
    NOVA and National Geographic present exclusive access to a unique discovery of ancient remains. Located in an almost inaccessible chamber deep in a South African cave, the site required recruiting a ...
    Air Date 9/10/2015
    1:53:07
  • NOVA -- Grand Canyon 4
    Grand Canyon 4
    This video explores the Grand Canyon.
    This video explores the Grand Canyon.
    Air Date 8/2/2015
    0:00:19
  • NOVA -- Grand Canyon 3
    Grand Canyon 3
    This video explores the Grand Canyon.
    This video explores the Grand Canyon.
    Air Date 8/2/2015
    0:00:58
  • NOVA -- Grand Canyon 2
    Grand Canyon 2
    This video explores the Grand Canyon.
    This video explores the Grand Canyon.
    Air Date 8/2/2015
    0:01:05
  • NOVA -- Grand Canyon 1
    Grand Canyon 1
    This video explores the Grand Canyon.
    This video explores the Grand Canyon.
    Air Date 8/2/2015
    0:01:19
  • NOVA -- Mount Kilauea
    Mount Kilauea
    This video explores Mount Kilauea.
    This video explores Mount Kilauea.
    Air Date 8/2/2015
    0:01:30
  • NOVA -- Gooseberry Falls 4
    Gooseberry Falls 4
    This video explores Gooseberry Falls.
    This video explores Gooseberry Falls.
    Air Date 8/2/2015
    0:01:01
  • NOVA -- Gooseberry Falls 3
    Gooseberry Falls 3
    This video explores Gooseberry Falls.
    This video explores Gooseberry Falls.
    Air Date 8/2/2015
    0:01:06
  • NOVA -- Gooseberry Falls 2
    Gooseberry Falls 2
    This video explores Gooseberry Falls.
    This video explores Gooseberry Falls.
    Air Date 8/2/2015
    0:00:24
  • NOVA -- Gooseberry Falls 1
    Gooseberry Falls 1
    This video explores Gooseberry Falls.
    This video explores Gooseberry Falls.
    Air Date 8/2/2015
    0:00:57
  • NOVA -- Exuma Cays 4
    Exuma Cays 4
    This video explores Exuma Cays.
    This video explores Exuma Cays.
    Air Date 8/2/2015
    0:03:22
  • NOVA -- Exuma Cays 3
    Exuma Cays 3
    This video explores Exuma Cays.
    This video explores Exuma Cays.
    Air Date 8/2/2015
    0:00:28