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Nemesis The Sun Evil Twin

   2011    Science
The theory of Némesis, a star that orbits the Sun and causes catastrophic events is explored. Nemesis is a hypothetical red dwarf or brown dwarf, originally postulated in 1984 to be orbiting the Sun at a distance of about 95,000 AU (1.5 light-years) somewhat beyond the Oort cloud, to explain a perceived cycle of mass extinctions in the geological record, which seem to occur more often at intervals of 26 million years.
Series: The Universe

Deep Freeze

   2012    Science
There is an extraordinary range of temperatures in the universe. This program examines the extreme lower temperature range, the temperature we live in and below, explaining how cold is essential for the formation of habitats suitable for life. Explore icy planets and moons, discover the role of cold in the Universe, and learn about the importance of ice to the development of habitable worlds.
Series: The Universe
Kingdom of Plants
Kingdom of Plants

   2012    Nature
How the Universe Works
How the Universe Works

   2014    Science
Hidden Kingdoms
Hidden Kingdoms

   2014    Nature
Triumph of Life
Triumph of Life

   2006    Nature
Stephen Hawking's Favorite Places
Stephen Hawking's Favorite Places

   2016    Science
In Search of Beethoven
In Search of Beethoven

   2009    Art
The Germanic Tribes
The Germanic Tribes

   2007    History
Nova Wonders
Nova Wonders

   2018    Science