Guest:  Dr. Doug Plata;  Topics:  Doug's list of 15 space advocate heresies plus news of his University of Arizona Tucson projects.

Guest:  Douglas (Doug) Messier;  Topics:  An overview review and look at the commercial and global space industry for 2018 plus a look ahead to 2019.

Guest:  Dr. Doug Plata; Topics: Multiple policy meetings regarding alternative lunar return possibilities, Scott Pace meetings, Doug's Dec. 5th telecon, and much more.

Guest:  Sarah Cruddas; Open Lines:  Topics:  Space For Humanity with Sarah followed by an Open Lines discussion on multiple topics with several callers.

Tags:  Open Lines, Dr. David Livingston, SLS, OGLF Advisory Board, SpaceX, electric cars, rocket reusability, U.S. Space Force, Trucks & diesel users, ROI for commercial projects, public benefit for government projects, BFR, SLS Block 2, US Congress, NASA funding, SLS funding, First Man the movie, Neil Armstrong, JWST, public private partnerships

Guest:  Open Lines with Dr. David Livingston; Topics:  A variety of topics were discussed but there seemed to be a focus on issues relating to SLS.