Big Ideas: August 30, 2019

In this edition: Genetics play a part in shaping a person's sexual orientation, a massive new study finds. Plus, President Trump launches "SpaceCom," a new Pentagon command focused on space warfare, to "ensure that America's dominance in space is never threatened." And, brain waves detected in clusters of lab-grown human brain cells known as organoids, leaving scientists confounded.

    Big Ideas: August 30, 2019

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