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

67 – Understanding Why Nuclear Power 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 Continue reading 67 – Understanding Why Nuclear Power Cannot Replace Fossil Fuels

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

44 – Part 3 of criticism of the Cheap Access to Space (CATS) draft legislative proposal

Recap After a general discussion of the fallacy of trying to use the prize concept to advance commercial human spaceflight, I started a series of postings focused on the Cheap Access to Space (CATS) draft legislative proposal to implement such a prize concept. The full text of the CATS’ draft Continue reading 44 – Part 3 of criticism of the Cheap Access to Space (CATS) draft legislative proposal