Rick Davis is the perfect person to co-lead NASA’s Mars Human Landing Sites Study. No one is more devoted to putting human bootprints on the Red Planet.&nbsp;He returns to Planetary Radio for this inspiring and informative conversation about our progress. Bruce Betts leads off What’s Up with another brief LightSail 2 update.&nbsp;The Planetary Society’s solar sailing cubesat continues to raise its orbit. Learn more about this week’s guests and topics at: &nbsp;<a href="http://www.planetary.org/multimedia/planetary-radio/show/2019/0821-2019-spacesuit-nicholas-de-monchaux.html" target="_blank">http://www.planetary.org/multimedia/planetary-radio/show/2019/0821-2019-rick-davis-humans-on-mars.html</a>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.

What Will You Send to the Moon?

Planetary Radio brings you the human adventure across our Solar System and beyond. We visit each week with the scientists, engineers, leaders, advocates, and astronauts who are taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Sarah Al-Ahmed and Planetary Society colleagues including Bill Nye the Science Guy and Bruce Betts as they dive deep into space science and exploration. The monthly Space Policy Edition takes you inside the DC beltway where the future of the US space program hangs in the balance. Visit planetary.org/radio for an episode guide and much more.