A Mathematical Pioneer Whose Work Made GPS Possible
The computing and STEM communities mourn the loss of Dr. Gladys Mae West, a pioneering mathematician whose remarkable contributions helped shape one of the most transformative technologies of the modern age. Dr. West passed away on January 17, 2026, at the age of 95, surrounded by family and friends, leaving behind a legacy that touches nearly every corner of the globe.
Born in 1930 in rural Dinwiddie County, Virginia, West’s journey from the segregated South to the forefront of scientific discovery was propelled by her extraordinary intellect and perseverance. As valedictorian of her high school class, she earned a scholarship to Virginia State College, where she studied mathematics, a foundation that would become the cornerstone of her career.
In 1956, West began her work at the U.S. Naval Proving Ground in Dahlgren, Virginia, as only the second African American woman and one of the few Black employees at the facility. There, she brought her deep mathematical insight to satellite data analysis and programming, rising to lead key projects. Her work on satellite geodesy, the mathematical modeling of the shape of the Earth, was critical to the precision that makes the Global Positioning System (GPS) reliable today.
During the 1970s and 1980s, West refined algorithms and managed complex computations on early supercomputers to account for gravitational, tidal, and other forces that distort Earth’s shape. These calculations directly informed the geodetic models that underpin modern GPS, enabling accurate location determination used in everything from emergency response to everyday navigation on smartphones and vehicles.
Despite her profound impact, West remained one of computing history’s “hidden figures” for many years. Recognition of her achievements increased over time, including her induction into the Air Force Space and Missile Pioneers Hall of Fame, and her selection as one of the BBC’s 100 Women. At NCWIT, we celebrated her as a 2021 Pioneer in Tech Award recipient, honoring her excellence in mathematical innovation and her inspirational role for women in technology.
Dr. West’s life reminds us that brilliance can emerge from unexpected places and that quiet dedication can change the world. Her legacy will continue to inspire generations of women and girls in STEM, reminding us all that passion, grit, and curiosity can leave a lasting imprint on humanity.
