Guest:  Open Lines with Dr. David Livingston;  Topics;  This Open Lines show had many callers and listeners using emails to discuss multiple topics pertaining to space.  See the "tags" for an example of topics discussed.

Guest:  Open Lines with Dr. David Livingston'  Topics:  Multiple space and popular topics per listener phone calls and emails including aerospace engineering & testing, gaming software, gravity, the end of SETI@home and much more.

Guest:  Open Lines with Dr. David Livingston;  Topics:  Multiple listener driven topics via listener telephone calls and emails to The Space Show.

Guest:  Open Lines with Dr. David Livingston; Topics:  We discussed multiple topics including the recent PGE power shutdown & emergency preparedness for TSS, EMP and the grid, Musk presentation, Starship, 2020 fiscal year budget, CR, NASA lunar contracts and more.

Guest:  Open Lines with a special appearance by Dr. John Jurist;  Topics: A response to the Jim Davis blog post re SpaceX and relevance, tardigrades, planetary protection, Outer Space Treaty and more.