Sir David Attenborough explores how a North Dakota fossil dig site could hold clues to what happened the day an asteroid struck Earth and wiped out the dinosaurs.
Episode Duration: 56 minutes and 46 seconds
Episode Number: 4906
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PBS' premier science series helps viewers of all ages explore the science behind the headlines.
Along the way, NOVA programs demystify science and technology and highlight the people involved in scientific pursuits.
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