On the Nature of Bismuth (I) Iodide in the Solid State, Spec. Sci. Tech, 17, 85 (1994).
Superconductivity Theory Applied to the Periodic Table of the Elements, In NASA. Johnson Space Center, Proceedings of the 4th International Conference and Exhibition: World Congress on Superconductivity, Volume 2, 500 (1995).
Commercial Orbital Space Transportation System, Proposal to NASA Solicitation JSC-COTS-2.
First Light, Research Proposal for Foundation Science at the Wisconsin Institute of Discovery.
An American Vision, Position Paper on National Science Policy, Submitted to http://change.gov.
21st Century Space Policy, Comment Submitted to the National Academies Space Board.
Human Space Flight - A New Direction, Position Paper for the Augustine HSF Review Committee.
Augustine Committee Recommendations, Personal Letter to Norman Augustine at Lockheed Corporation.
Commercial Crew Development, Proposal to NASA Solicitation JSC-CCDev-1.
Heavy Lift Launch and Propulsion Technology, Response to NASA Request for Information 05042010PS40.
Heavy Lift Reusable Launch Vehicles, Quarterly Report - The Tsiolkovsky Group, Madison, Wisconsin, USA.
The Planet Ceres - A Worthy Goal for a Great Nation, Commentary on National Space Policy.
The Meghar Scale of Planetary Mass Classification
The British Scale for Launch Vehicle Mass Classification
United States National Space Policy - Safety, Security and Diplomacy through Science and Technology,
Written Statement for the President and his Council of Advisors on Science and Technology (PCAST).
The Future of Life on Earth, NASA RFI Solicitation NNH10ZDA010L, The Past, Present, and Future of Life on Earth:
Scientific Connections between NASA’s Earth Science Division and Astrobiology Program.
Launch LLC, Annual Report, The Tsiolkovsky Group, Madison, Wisconsin, USA.
Heavy Lift Launch and Propulsion Technology, Systems Analysis and Trade Study, Federal Contract Proposal,
NASA Broad Agency Announcement (BAA) NNM10ZDA001K.
Reusable Space Launch Systems, NASA Innovative Advanced Concepts NIAC Solicitation NNH11ZUA001N.
Resource Exploration and Exploitation in Near Earth Space, Satellite Salvage, Reservoir Crater Exploration and Asteroid Capture and Derotation, NASA Innovative Advanced Concepts NIAC Solicitation NNH12ZUA002N.
The Lunar Direct Polar Moon Base Concept, NASA Innovative Advanced Concepts NIAC Solicitation NNH13ZUZ001N.
Asteroid Missions – Upper Stage Orbiters, Landers, Hoppers and Bases.
Ceres Polar Mission – Ceres Polar Orbiter, Lander and Reconnaissance Mission.
OSIRIS-REx II to Mars – Mars Sample Return Mission Proposal for NASA and the Lunar Planetary Institute.
Lunar Direct – Landing on the Moon in a Single Launch.
Space Exploration and Development Architectures (For SpaceX Falcon Launch Vehicles).
Liquid Reusable Boosters for Lunar Direct Polar Moon Base Development (Using SLS Core Stages).
Lunar Injection, Circumnavigation, Flyby and Gravity Assist Trajectories (For SLS Core Stage Recovery).
The National Academies – Committee on Human Spaceflight – Public Input
The Evolution of a Reusable Space Launch System (SLS)
The Delta V Reusable Space Launch System
Terraforming Planet Earth
The Space Cadet