Sir Martin Rees: Earth in its final century?
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http://www.ted.com In a taut soliloquy that takes us from the origins of the universe to the last days of a dying sun 6 billion years later, renowned cosmologist Sir Martin Rees explains why the 21st century is a pivotal moment in the history of humanity: the first time in history when we can materially change ourselves and our planet. Stunning... Read more
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- -: Sir Martin Rees: Earth in its final century?
April 15, 2008 (about 16 years ago)http://www.ted.com In a taut soliloquy that takes us from the origins of the universe to the last days of a dying sun 6 billion years later, renowned cosmologist Sir Martin Rees explains why the 21st century is a pivotal moment in the history of humanity: the first time in history when we can ma...
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- -: Our Expanding Universe, Explained - Bethany Cobb
October 9, 2009 (over 14 years ago)Complete video at: http://fora.tv/2009/10/01/Bethany_Cobb_In_Galileos_Footsteps Bethany Cobb, a UC Berkeley postdoctoral fellow, explains Edwin Hubble's discovery that the universe is constantly expanding. She describes how galaxies are free to move through space, claiming in a few billion years...
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- -: When Galaxies Collide
November 13, 2010 (over 13 years ago)Complete video at: http://fora.tv/2010/08/02/Martin_Rees_Lifes_Future_in_the_Cosmos Astrophysicist Martin Rees explains how astronomers use advanced computer models to help understand the shapes and motions of galaxies. ----- President of the Royal Society, England's Astronomer Royal, Lord Mar...
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