The world of modern navigation and technology has lost one of its most influential yet often overlooked pioneers with the passing of Gladys West. A brilliant mathematician, West played a pivotal role in the development of the Global Positioning System (GPS), a technology that has become indispensable in daily life, from driving directions to global communications.
Early Life and Career
Born in 1930 in rural Virginia, Gladys West overcame significant barriers of race and gender to pursue a career in science. She earned a scholarship to Virginia State College, where she studied mathematics and later became a teacher. In 1956, she joined the Naval Surface Warfare Center Dahlgren Division, one of the few African American women hired as a mathematician at the time.
Groundbreaking Work on GPS
At Dahlgren, West's expertise in satellite geodesy—the science of measuring the Earth's shape and gravitational field—proved invaluable. She was part of a team that processed data from satellites to model the Earth's surface with unprecedented accuracy. Her meticulous calculations and programming work were essential in creating the geoid models that underpin GPS technology, enabling precise global positioning.
West's contributions remained largely unrecognised for decades, as she worked behind the scenes while male colleagues often received public acclaim. However, her persistence and skill helped lay the foundation for a system that now supports everything from military operations to smartphone apps.
Recognition and Legacy
In later years, Gladys West's achievements gained wider recognition. She was inducted into the United States Air Force Space and Missile Pioneers Hall of Fame in 2018, and her story has been celebrated as part of the broader narrative of "hidden figures" in science. Her work not only advanced technology but also inspired future generations of women and minorities in STEM fields.
Gladys West passed away in 2026, leaving behind a legacy that extends far beyond her mathematical formulas. Her life serves as a testament to the power of perseverance and intellectual curiosity in overcoming adversity and shaping the modern world.
