Guests:  Dr. Haym Benaroya, Raymond Martin;  Topics:  We discussed their published paper, "Pressurized lunar lava tubes for habitation."  This was a detailed discussion with additional topics at the end regarding orbital assembly and SSP.

Guest:  Dr. Haym Benaroya;  Topics:  The government's lunar return plan for humans on the Moon, The Gateway, delays and challenges, human safety and health risks, Starship, commercial companies and a human lunar return, China lunar plans and much more.

Guests: John Batchelor, Dr. Haym Benaroya, Dr. David Livingston; Topics:  China and Russian lunar development plans plus concerns about it.

Guests:  Dr. Haym Benaroya, Dr. William Belfer:  Topics: Ezekiel spaceships and the book by the now deceased NASA engineer Josef Blumrich, "The Spaceships of Ezekiel,  The book has been posted on the blog for this show.

Guests: John Batchelor, Dr. Haym Benaroya,  Dr. David Livingston.  Topics:  Electromagnetic pulse event (EMP), hardening technologies, rogue nations, grid upgrade costs and more.