PREVIEW: Professor Richard Binzel, a planetary scientist from MIT, describes the violent event at Tunguska, Siberia in 1908 that is now understood as caused by an asteroid. More later.

The John Batchelor Show - A podcast by John Batchelor - Duminică

PREVIEW: Professor Richard Binzel, a planetary scientist from MIT, describes the violent event at Tunguska, Siberia in 1908 that is now understood as caused by an asteroid. More later. 1913 OLD PSKOV

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