What will interplanetary trade look like? If humans have settlements on Mars or the Moon, what products and services will be necessary? Will Elon Musk be the John D. Rockefeller of space? Science or Fiction? -- a podcast written and presented by science fiction author and physicist Michael James Scharen in conjunction with the website michaelsbookcorner.com. A new episode is released each Thursday. The podcast is available on Sticher, Spotify, Audible, Apple Podcasts, Amazon Music, Amazon Alexa, Podcast Addict, Podcast Republic, YouTube and other outlets. Complementary e-book is available at https://michaelsbookcorner.com/signup.html or joining the mailing list. The author’s first book, Sol is Not Lost is available on the YouTube channel Michael Scharen as an audiobook as a playlist in three parts.