Guests:  Ben Puckett, Shivani Patel, Ishaan Mishra;  Topics: Each student discussed his/her paper plus we talked with each student about future plans, spaceflight, Mars and much more.  Don't miss this excellent student discussion.

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.

Guest:  Jeff Greason;  Topics:  Advanced propulsion, beamed propulsion, electric vehicles, cost factors, launch markets, nuclear propulsion, Tau Zero Foundation, Electric Sky and more.

Guest:  Dr. Robert Zubrin; topics:  Bob's new book, "The Case For Space: How The Revolution in Spaceflight Opens Up A Future OF Limitless Possibility, the Gateway, lunar return, Mars, policy, China, Pell Grant funding and more.

Guest:  Dr. Christopher Morrison; Topics:  Space radiation, lifetime radiation limitations, legal limits, rodent GCR and radiation experimentation, terrestrial radiation simulations, space nuclear power & propulsion, supercooling conductivity.