Sean Raymond is a Science Fiction loving American astrophysicist living in Bordeaux France. I have been a longtime fan  of his blog

PlanetPlanet.  He studies the formation and evolution of planetary systems and has created a system for modeling fictional solar systems, which I enjoy as he blends imagination with hard science. On his blog he also evaluates the scientific validity of well-known settings from movies or books (such as Pandora, Arrakis, and more).

This conversation will be fun for space nerds and Science Fiction writers interested in getting the science correct.

http://perso.astrophy.u-bordeaux.fr/~sraymond/

•You can find my books here:

Amazon-https://www.amazon.com/David-Agranoff/e/B004FGT4ZW•And me here:Goodreads-http://www.goodreads.com/author/show/2988332.David_AgranoffTwitter-https://twitter.com/DAgranoffAuthorBlog-http://davidagranoff.blogspot.com/