•  5
    Introduction
    In The Value of Science in Space Exploration, Oxford University Press. pp. 1-10. 2020.
    This chapter highlights pushes to commercialize space exploration as foils for raising questions about which fundamental values and goals spaceflight serves, emphasizing the interdisciplinary nature of these issues. It also provides a summary of the book. Intended to contribute to professional philosophical discourse, this book is also intended to be accessible, meaningful, and relevant to individuals from a wide range of disciplinary and vocational backgrounds—from planetary scientists to polit…Read more
  •  24
    This chapter provides a detailed and epistemologically informed defense of the intrinsic value of scientific knowledge and understanding. It responds to Lars Bergström’s criticisms of the value of scientific knowledge. It then devises a naturalistic approach to intrinsic value that is used to argue that true belief (and, in turn, knowledge) is intrinsically valuable because true beliefs are valued for their own sake, and such acts of valuation help to explain the overall scientific worldview. It…Read more
  •  12
    Rationales for Space Exploration
    In The Value of Science in Space Exploration, Oxford University Press. pp. 11-46. 2020.
    This chapter considers and rejects traditional spaceflight rationales, accenting the insubstantial evidence that is usually offered in their support. It uses regression analyses and public opinion data to show that spaceflight activities do not have a clear impact on either STEM degree conferral rates or overall scientific literacy within the United States. Next, it uses public opinion data to show that the general public is not especially interested in astrobiology or in the scientific search f…Read more
  •  11
    This chapter argues that the scope of planetary protection policies should be expanded to include all potential sites of interest to space science. It begins by providing an overview of planetary protection policies and their history. This is followed by discussions of Charles Cockell’s views on the ethics of microbial life, Holmes Rolston’s views on the preservation of natural value in the solar system, and Tony Milligan’s views on respecting natural integrity in space. It argues that each view…Read more
  •  8
    This chapter argues that there is not an urgent need for humans to establish space settlements. It defends the existence of an in-principle obligation to settle space to ensure long-term human survival, and shows that such an obligation is not defeated by various forms of skepticism about duties to future generations, including the “Non-Identity” problem. However, it argues that for the foreseeable future, space settlements will not be effective tools for ensuring long-term human survival, and t…Read more
  •  10
    This chapter argues that space resource exploitation should not be encouraged through enabling legislation. It discusses the legal context of space exploitation, rejecting oft-repeated promises that space exploitation will yield tangible benefits for the majority of humanity. Surveying recent planetary science research, it argues that most of the easily accessible space resources are scarce, and so do not exist in quantities capable of ameliorating terrestrial resource depletion. It also identif…Read more
  •  21
    This chapter provides a defense of the instrumental value of scientific knowledge and understanding as well as a defense of the use of public funds in support of scientific research, including space science. It motivates a more sophisticated understanding of the “spinoff” justification for space exploration by drawing on research in philosophy of science which connects social progress to scientific progress, and scientific progress to scientific exploration. This establishes the instrumental val…Read more
  •  7
    Epilogue
    In The Value of Science in Space Exploration, Oxford University Press. pp. 206-210. 2020.
    This concluding chapter argues that scientific exploration of the space environment should remain a priority even if space settlements are established, and even if technological breakthroughs decrease the cost of spaceflight enough to increase spaceflight activities by orders of magnitude. It addresses the enduring need to engage in scientific examination in order to establish the viability of space environments for human habitation. It also reaffirms the value of scientific exploration, knowled…Read more
  •  50
    We only see Mars from Earth's perspective in the first season of The Expanse, but Season 2 changes that by introducing Gunnery Sergeant Bobbie Draper, a Martian Congressional Republic Navy (MCRN) marine. Mars as seen by Martians resembles our Mars: ruddy, rocky, dusty, inhospitable, and cold. This chapter focuses on Draper and the Mars Congressional Republic (MCR). What is striking about the culture of the MCR is how naturally it flows from contemporary visions of space exploration, especially t…Read more
  •  154
    The Great Colonization Debate
    with Kelly C. Smith, Keith Abney, Gregory Anderson, Linda Billings, Carl L. DeVito, Brian Patrick Green, Alan R. Johnson, Lori Marino, Gonzalo Munevar, Michael P. Oman-Reagan, Adam Potthast, Koji Tachibana, John W. Traphagan, and Sheri Wells-Jensen
    Futures 110 4-14. 2019.
    Click on the DOI link to access the article.
  •  48
    Space settlement: What's the Rush?
    Futures. forthcoming.
    Click on the DOI link to access the article.
  •  54
    The Value of Science in Space Exploration
    Oxford University Press. 2020.
    "The Value of Space Science provides a rigorous assessment of the value of scientific knowledge and understanding in the context of contemporary space exploration. It argues that traditional spaceflight rationales are deficient, and that the strongest defense of spaceflight comes from its potential to produce intrinsically and instrumentally valuable knowledge and understanding. It engages with contemporary epistemology to articulate an account of the intrinsic value of scientific knowledge and …Read more
  •  4
    Editorial: To: The editor of JBIS, 26 July 2018
    British Interplanetary Society 71 (10): 359-360. 2018.
    Letter to the editor. Click on the URI to access the article.
  •  19
    Click on the DOI link to access the article.
  •  40
  •  44
    Click on the DOI link to access the article.
  •  2402
    On the Moral Permissibility of Terraforming
    Ethics and the Environment 18 (2): 1-31. 2013.
    Terraforming is a process of planetary engineering by which the extant environment of a planetary body is transformed into an environment capable of supporting human inhabitants. The question I would like to consider in this paper is whether there is any reason to believe that the terraforming of another planet—for instance, the terraforming of Mars—is morally problematic. Topics related to the human exploration of space are not often discussed in philosophical circles. Nevertheless, there exist…Read more
  •  136
    The Ethics of Space Exploration (edited book)
    Springer. 2016.
    This book aims to contribute significantly to the understanding of issues of value which repeatedly emerge in interdisciplinary discussions on space and society. Although a recurring feature of discussions about space in the humanities, the treatment of value questions has tended to be patchy, of uneven quality and even, on occasion, idiosyncratic rather than drawing upon a close familiarity with state-of-the-art ethical theory. One of the volume's aims is to promote a more robust and theoretica…Read more
  •  35
    Click on the DOI link to access the article.
  •  168
    Mathematical Structuralism, Modal Nominalism, and the Coherence Principle
    Philosophia Mathematica 23 (3): 367-385. 2015.
    According to Stewart Shapiro's coherence principle, structures exist whenever they can be coherently described. I argue that Shapiro's attempts to justify this principle are circular, as he relies on criticisms of modal nominalism which presuppose the coherence principle. I argue further that when the coherence principle is not presupposed, his reasoning more strongly supports modal nominalism than ante rem structuralism
  •  378
    Our Moral Obligation to Support Space Exploration
    Environmental Ethics 33 (1): 67-88. 2011.
    The moral obligation to support space exploration follows from our obligations to protect the environment and to survive as a species. It can be justified through three related arguments: one supporting space exploration as necessary for acquiring resources, and two illustrating the need for space technology in order to combat extraterrestrial threats such as meteorite impacts. Three sorts of objections have been raised against this obligation. The first are objections alleging that supporting s…Read more