Casey Dreier is director of advocacy for the Planetary Society.

The latest from Casey

  • NASA has no mission in development to retrieve the samples that will be collected by its Mars 2020 rover. Credit: NASA
    From the Magazine

    Op-ed | Sleepwalking away from Mars

    The United States is close to sleepwalking through a major decision regarding its robotic Mars exploration plans — a decision that would depart from decades of commitment to exploring the red planet and potentially undermine 20 years of focused taxpayer investment.