The former Oklahoma congressman and Navy aviator stepped into the leadership role barely a year ago. Now he wants to see humans back on the Moon by 2024 as a vital stepping stone to Mars. Join us for a wide-ranging conversation about this ambitious plan and much more. Planetary Society Chief Scientist Bruce Betts continues the countdown to launch of LightSail 2 before he takes us across the heavens in What’s Up. You can learn more about this week’s guests and topics at:  http://www.planetary.org/multimedia/planetary-radio/show/2019/0522-2019-2019-jim-bridenstine.html Learn more about your ad choices. Visit megaphone.fm/adchoices