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Published: Aug. 4, 2020, 6:46 p.m.

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This week we talk about Tianwen-1, Kepler\\u2019s Laws of Planetary Motion, and Perseverance.

We also discuss the Space Race, orbital periods, and the Emirates Mars Mission.

This is a public episode. If you\\u2019d like to discuss this with other subscribers or get access to bonus episodes, visit letsknowthings.substack.com/subscribe'