Podcast:StarTalk Radio Published On: Mon Jan 27 2020 Description: Neil deGrasse Tyson and comic co-host Harrison Greenbaum answer fan-submitted Cosmic Queries that explore the techniques, inventions, and ideas for navigating the cosmos including celestial maps, GPS, the North Star, and more. NOTE: StarTalk+ Patrons and All-Access subscribers can watch or listen to this entire episode commercial-free. Thanks to this week’s Patrons for supporting us: Stella Burkey, Derek Pavan, Travis Dunn, Michael Jonsson, Chad Hunt. Subscribe to SiriusXM Podcasts+ on Apple Podcasts to listen to new episodes ad-free and a whole week early.