This week, we are delighted to welcome Neil deGrasse Tyson to the show. We talk about his new book, Cosmic Queries, as well as the nature of intelligence, Carl Sagan, and a whole lot more.But first, we learn about one of the biggest problems in astrophysics, as a new study lends further evidence to questions about the expansion rate of the Universe. We also examine the oldest quasar jet ever seen radiating in X-rays. Then, we look at a nearby exoplanet that lost one inhospitable atmosphere, just to grow one even more noxious.Listen to the podcast of this episode here, or watch the video version at: https://youtu.be/Va_by-AuGuY--- Send in a voice message: https://anchor.fm/the-cosmic-companion/messageSupport this podcast: https://anchor.fm/the-cosmic-companion/support Get full access to The Cosmic Companion at thecosmiccompanion.substack.com/subscribe