Solar power has its limits. Some space missions will need an alternative source of power like RTGs. 😍 [Interview+] Bonus Part. 05:43 Different isotopes19:25 Possible missions28:07 Stirling engines33:48 Current obsessions43:02 Final thougths and more interviews📺 VIDEO VERSIONhttps://youtu.be/r2SxXkm2_fc📰 GUIDE TO SPACE NewsletterNo ads. Subscribe for FREE: https://universetoday.com/newsletter🎧 PODCASTSUniverse Today: https://universetoday.fireside.fm/Astronomy Cast: http://www.astronomycast.com/📩 CONTACT FRASER[email protected]⚖️ LICENSECreative Commons Attribution 4.0 International (CC BY 4.0)