Neil DeGrasse Tyson: Science And 'Empire-Building Ambitions' Have Always Worked Hand In Hand21:35

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Physicist Neil deGrasse Tyson writes about the ways science has been put to use to help fight, conquer and expand in his new book "Accessory to War," which he co-authored with Avis Lang. In a special episode of the Here & Now podcast, Tyson joins host Jeremy Hobson to discuss the book and have a wide-ranging conversation about space — and, of course, aliens.

This program aired on September 14, 2018.

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