71 – Space Review article: An engineer’s view of what low-cost, reusable, commerical passenger space transportation means

On January 23, 2017, this article was published in The Space Review. A PDF of the article is here. The apparent intention of the Trump administration to reestablish the National Space Council has raised expectations that important improvements in national space policies and America’s space enterprise will be forthcoming. One Continue reading 71 – Space Review article: An engineer’s view of what low-cost, reusable, commerical passenger space transportation means

68 – Understanding Why Wind and Ground Solar Energy Cannot Replace Fossil Fuels

America faces two critical challenges this century. The first is responding to the uncertainty that the abnormally high and rising atmospheric carbon dioxide (CO2) level will have detrimental environmental consequences for human civilization. The second is replacing the diminishing U.S. technically recoverable fossil fuel endowment with new non-fossil fuel energy Continue reading 68 – Understanding Why Wind and Ground Solar Energy Cannot Replace Fossil Fuels

60 – Space Review article: Federal Legislation to Jumpstart Space Solar Power

On April 4, 2016, this article was published in The Space Review. (A PDF version of the article is here.) The United States is transitioning from a primary reliance on fossil fuels to greater use of sustainable natural and nuclear energy sources. There are two reasons for this transition. The Continue reading 60 – Space Review article: Federal Legislation to Jumpstart Space Solar Power

56 – Space Review series (Part 1): The Paris Climate Agreement and Space Solar Power

On February 29, 2016, the first of my three-part series on world environmental and US energy security was published in The Space Review. (The pdf of the article is available here.) Author’s note: How the United States responds to the twin environmental and energy security threats created by our substantial dependence Continue reading 56 – Space Review series (Part 1): The Paris Climate Agreement and Space Solar Power

55 – Becoming Spacefaring: America’s Path Forward in Space (Revised)

  In 2014, I wrote an update to the my 2008 paper, The End of Easy Energy and What to Do About It. The 2014 paper, The American Energy Security Crisis Solution—Space Solar Power, was published in the Spring, 2014, edition of the online Journal of Space Philosophy. In 2015, Continue reading 55 – Becoming Spacefaring: America’s Path Forward in Space (Revised)