Christopher John "Chris" Cassidy is a NASA astronaut and United States Navy SEAL. Chris Cassidy achieved the rank of captain in the U.S. Navy. He was the Chief of the Astronaut Office at NASA from July 2015 until June 2017.Cassidy attended York High School, in York, Maine. He then graduated from the Naval Academy Preparatory School in Newport, Rhode Island, in 1989. Read More
