Episode 46 – Harvard Geologist Andy Knoll Sums Up The Grand Sweep

Episode 46 – Harvard Geologist Andy Knoll Sums Up The Grand Sweep Of Earth’s History

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Description

Harvard University geologist Andrew H. Knoll takes on the grand sweep of Earth’s formation and evolution in his new book “A Brief History of Earth: Four Billion Years in Eight Chapters. He succinctly describes Earth from its cosmological beginnings in a molecular cloud on through to the present day. It’s a fine line between the vacuum of space and the planet on which we walk.

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