BREAKING NEWS: Renowned NASA scientist and veteran, David A. Stewart, has passed away at the age of 93 on October 17, 2025. His family confirmed the news earlier today, marking the end of a remarkable life dedicated to science, family, and faith.
Born on September 25, 1932, in Santa Barbara, CA, David lived a life defined by his commitment to excellence and innovation. He is survived by his devoted wife of 70 years, Faith Z. Stewart, two children, Jim Stewart and Shari Gambello, along with six grandchildren and fourteen great-grandchildren who were the pride of his life.
David’s groundbreaking career at NASA spanned over 64 years, where he made significant contributions as a senior research scientist at the Ames Research Center. He was instrumental in developing key technologies for the U.S. space program, including co-inventing Gap Fillers and the innovative TUFROC heat shield technology. His work played a vital role from the Apollo missions to the space shuttle program.
In recognition of his extraordinary achievements, David received numerous awards, including the Government Invention of the Year in 2011 and the NASA ICB Award for TUFROC. His contributions are immortalized in multiple patents, such as the Leading Edge Heat Shield for Wings of Spacecrafts.
Beyond his professional accomplishments, David was cherished for his unwavering faith and gentle spirit. He was a dedicated family man, never missing a sporting event or performance of his children and grandchildren, always cheering them on with pride.
David A. Stewart’s legacy will endure through the innovations he pioneered and the love he shared with his family. His passing leaves a profound impact on all who knew him and the many lives he touched through his work and devotion.
For those wishing to share their condolences, please visit www.scmemorial.com.
