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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 Germanic Tribes
The Germanic Tribes

   2007    History
The Private Life of Plants
The Private Life of Plants

   1994    Nature
The Men Who Built America
The Men Who Built America

   2012    History
Putin: A Russian Spy Story
Putin: A Russian Spy Story

   2020    History
Planet Earth
Planet Earth

   2007    Nature
Planet Earth II
Planet Earth II

   2016    Nature
Fleetwood Mac Live in Boston
Fleetwood Mac Live in Boston

   2004    Art
Out of the Cradle
Out of the Cradle

   2019    History