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Inside Einstein's Mind
Retrace the thought experiments that inspired his theory on the nature of reality.
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Looking for Life on Mars
NASA launches its most ambitious search yet for traces of ancient life on Mars.
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The Elegant Universe: Part 3
Will experimental particle physics confirm the wild predictions of string theory?
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The Fabric of the Cosmos: The Illusion of Time
It defines our lives, but what is time really? Have a look into its true nature.