"Worldship Ethics 101: The Shipborn," 2017 Tennessee Valley Interstellar Workshop, October 2017.
"Where No Planetary Protection Policy Has Gone Before," 2016 Tennessee Valley Interstellar Workshop, March 2016.
"Some Ethical Constraints on Near-Earth Resource Exploitation,'' 2015 ESPI Autumn Conference, September 2015.
"Why Should Philosophers Care About Space Exploration?," Wichita State Department of Philosophy Colloquium, March 2015.