Question: The Mars Society is an American worldwide volunteer-driven space-advocacy non-profit organization, inspired by "The Case for Mars" conferences which were hosted by The Mars Underground at the University of Colorado Boulder, a public research university located in Boulder, Colorado, in which country?
Sentence (from "Mars Society"): The Mars Society is an American worldwide volunteer-driven space-advocacy non-profit organization dedicated to promoting the human exploration and settlement of the planet Mars.
Relevant evidence: No