Could comets be the source of life on Earth? – Justin Dowd – Video

Video Link: https://www.youtube.com/watch?v=EnnPJXbKt0U

Could comets be the source of life on Earth? - Justin Dowd
View full lesson: http://ed.ted.com/lessons/could-comets-be-the-source-of-life-on-earth-justin-dowd While comets were historically thought to be ill omens of war and famine, recent science...

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Could comets be the source of life on Earth? - Justin Dowd - Video

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