Last Watched

The World Set Free

   2014    Nature
This episode explores the nature of the greenhouse effect (discovered by Joseph Fourier and Svante Arrhenius), and the evidence demonstrating the existence of global warming from humanity's influence. Tyson begins by describing the long-term history of the planet Venus; based on readings from the Venera series of probes to the planet, the planet had once had an ocean and an atmosphere, but due to the release of carbon dioxide from volcanic eruptions, the runaway greenhouse effect on Venus caused the surface temperatures to increase and boiled away the oceans. Tyson then notes the delicate nature of the amount of carbon dioxide in the atmosphere can influence Earth's climate due to the greenhouse effect, and that levels of carbon dioxide have been increasing since the start of the 20th century. Evidence has shown this to be from mankind's consumption of oil, coal, and gas instead of from volcanic eruptions due to the isotopic signature of the carbon dioxide. The increase in carbon dioxide has led to an increase in temperatures, in turn leading to positive feedback loops of the melting polar ice caps and dethawing of the permafrost to increase carbon dioxide levels. Tyson then notes that humans have discovered means of harvesting solar power, such as Augustin Mouchot's solar-driven motor in the 19th century, and Frank Shuman's solar-based steam generator in the 1910's. Tyson points out that in both cases, the economics and ease of using cheap coal and oil caused these inventions to be overlooked at the time. Today, solar and wind-power systems would be able to collect enough solar energy from the sun easily. Tyson then compares the motivation for switching to these cleaner forms of energy to the efforts of the Space race and emphasizes that it is not too late for humanity to correct its course.
Series: Cosmos: A Spacetime Odyssey

The Ivory Game

   2016    Nature
The film exposes the dark world of ivory trafficking. Ivory is a prized status symbol for middle class Chinese, and poachers in pursuit of elephants in Africa are causing a great damage. Award-winning director Richard Ladkani and Kief Davidson filmed undercover for 16 months infiltrating and documenting the deep-rooted corruption at the heart of the global ivory trafficking crisis.

Wild Ocean

       Nature    3D    HD
Each year an unbelievable feeding frenzy takes place in the oceans of South Africa as billions of sardines migrate up the KwaZulu-Natal Coast. Wild Ocean captures spectacular breaching whales, feeding sharks, diving gannets, and massive bait balls inside and up close on the screen. The migration has provided an annual food source for both life in the sea and the people living along the African shores for countless generations. The film demonstrates how business, government, and the local people have joined forces to protect this invaluable ecological resource.
The film will delve audiences into an epic underwater struggle for survival and reveal the economic and cultural impact the migration has on the coastal communities. Wild Ocean is an explosive, symphonic documentary film about man and nature which captures one of natures greatest migration spectacles through the magic of IMAX.

The Normans: Conquest

   2010    History
Professor Robert Bartlett explores the impact of the Norman conquest of Britain and Ireland. Bartlett shows how William the Conqueror imposed a new aristocracy, savagely cut down opposition and built scores of castles and cathedrals to intimidate and control. He also commissioned the Domesday Book, the greatest national survey of England that had ever been attempted. England adapted to its new masters and both the language and culture were transformed as the Normans and the English intermarried. Bartlett shows how the political and cultural landscape of Scotland, Wales and Ireland were also forged by the Normans and argues that the Normans created the blueprint for colonialism in the modern world.
Series: The Normans

Grand Canyon Adventure

   2008    Nature    3D    HD
Anthropologist Wade Davis and river advocate Robert F. Kennedy Jr journey down the Colorado River on a two-week expedition to highlight water conservation issues. Traveling by rafts, kayaks and wooden dories, they are accompanied by their daughters and guided by Shana Watahomigie, a Native American National Park ranger. Filmed with a 350-pound 3D camera, it involved the cooperation of three Indian nations, the National Park Service, film sponsor Teva’s team of kayakers and more than a dozen experienced river guides. The film explores America's drought and freshwater shortages, the impact on the river of damming, and human water supply needs. Grand Canyon Adventure: River at Risk was directed by Greg MacGillivray and narrated by Robert Redford.

Unity

   2015    Culture
This is a film for all who hunger for a deeper meaning to existence, and a more unified way of living with one another, with all expressions of life. Just imagine a world that didn't rely on opposites (us/them, rich/poor, black/white, gay/straight, human/animal, etc.), but rather a world that perceived only wholeness. UNITY presents the notion of a world in which we are all equally valued, even though we are not the same: Human, Animal, Tree.
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Leonardo Da Vinci

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2020  Science
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The Story of China

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Neanderthal

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Long Way Home

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The Cell

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Planet Earth

Planet Earth

2007  Nature