Neil deGrasse Tyson and comic co-host Eugene Mirman answer fan submitted Cosmic Queries with Matt O’Dowd, astrophysicist and host of PBS Space Time, about vacuum decay, mapping the galaxy, diamond planets, a simulation universe and much, much, more!
NOTE: StarTalk All-Access subscribers can watch or listen to this entire episode commercial-free. Find out more at https://www.startalkradio.net/startalk-all-access/

Subscribe to SiriusXM Podcasts+ to listen to new episodes of StarTalk Radio ad-free and a whole week early.
Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.

Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.