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Nemesis The Sun Evil Twin

   2011    Science
The theory of NĂ©mesis, 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
The Human Body
The Human Body

   1998    Medicine
P.U.L.S.E
P.U.L.S.E

   2006    Art
The Cell
The Cell

   2009    Science
Top Gear
Top Gear

   2012    Technology
The Germanic Tribes
The Germanic Tribes

   2007    History
How Art Made the World
How Art Made the World

   2006    Art
Art of Spain
Art of Spain

   2008    Art
Life in the Undergrowth
Life in the Undergrowth

   2005    Nature