Tom Pierson, who founded the SETI Institute and went on to become its Chief Executive Officer for most of the organization’s first thirty years, died on February 20 of cancer. He had been on medical leave since 2012.

Under Pierson’s guidance, the Institute grew from a tiny, narrowly focused research center with a handful of employees to its current status: an internationally known organization that is home to more than 130 scientists, educators, and support staff.

Thomas Pierson was presented the Distinguished Public Service Medal by the National Aeronautics and Space Agency (NASA) on February 9, 2014 by Dr. Pete Worden, Director of NASA Ames Research Center. Please visit the SETI Institute website to read about Pierson’s life and his incredible contribution to space science.