NPR Morning Edition, 25 February 2021 (6 min 43 s): https://www.npr.org/2021/02/25/971261718/nasas-mars-mission-goal-find-evidence-of-past-life-on-the-red-planet
NPR Morning Edition, 25 February 2021

Planetary Scientist
NPR Morning Edition, 25 February 2021 (6 min 43 s): https://www.npr.org/2021/02/25/971261718/nasas-mars-mission-goal-find-evidence-of-past-life-on-the-red-planet
Science Friday, 29 January 2016 (16 min 49 s):
http://www.sciencefriday.com/segments/confessions-of-a-meteorite-hunter/
New Mexico People Places and Ideas, KUNM, Albuquerque, NM, 6 February 2015. http://www.stephenspitz.com/2015/02/ (28 min 30 s)