Celebrating Women’s History Month: Pioneers in STEM at the Science and Technology Directorate
Guest contribution from Julie Brewer, Deputy Under Secretary for Science and Technology
Importance of Women’s History Month
Each year, Women’s History Month serves as a reminder of the invaluable contributions women make across various sectors. This year’s theme emphasizes “Women Who Advocate for Diversity, Equity, and Inclusion.” In this context, I invite you to explore some inspiring stories of women in the Science and Technology Directorate (S&T), who are ardently working to foster inclusivity in the fields of Science, Technology, Engineering, and Mathematics (STEM).
Spotlight on Leading Women in Science and Technology
In the following sections, we will delve into the experiences and insights of three remarkable women from our Office of National Laboratories. They exemplify leadership and innovation, providing essential research and technological development that supports the missions of our Department.
Casandra Robinson – Engineer at NUSTL
Casandra Robinson shares her journey into engineering, tracing it back to her innate curiosity about how things function. Her involvement in solving puzzles and problems aligned perfectly with her professional path as an engineer at the National Urban Security and Technology Laboratory (NUSTL).
“The mission of my lab is vital as we provide tools and guidance to support local first responders,” Casandra states. “The commitment and enthusiasm of my colleagues are what make it truly rewarding.”
Reflecting on her younger self, she notes, “If my ten-year-old self could see me now, she would say, ‘Wow, I did not see us winding up here, but I’m so glad we did.”
Lauren Moiso – General Engineer at TSL

Lauren Moiso, a general engineer focused on developmental testing at the Transportation and Security Laboratory (TSL), initially aspired to enter the medical and dental fields. However, her affinity for math and science led her to pursue undergraduate and master’s degrees in biomedical engineering.
She remarks, “My work allows me to continuously explore emerging technologies, making it an exciting field to be in.” Her advice to aspiring young women in STEM is straightforward: “Explore various disciplines. Don’t limit yourself to one area; you might discover an unexpected passion.”
Theresa Pennington – Research Chemist at CSAC

Starting her academic career in criminal justice, Theresa Pennington expanded her focus by adding chemistry, ultimately achieving a master’s in forensic science. Her diverse career path includes roles in clinical and forensic laboratories, culminating in her current position at the Chemical Security Analysis Center (CSAC).
Theresa draws inspiration from her grandmother, who encouraged her to be independent: “My grandmother always told me to focus on myself first, and I cherish that guidance.”
Her words for future female scientists are empowering: “Don’t hesitate. If STEM intrigues you, pursue it fiercely. There are myriad paths available with a STEM degree, and enjoyment in your work is key.”
Conclusion
The women of the Science and Technology Directorate are not only pivotal in their domains but also serve as role models for future generations. Their contributions significantly enhance national security, and the recognition of their efforts is essential—not only during Women’s History Month but year-round. As we acknowledge their achievements, it is clear that diversity of talent and perspective is crucial for addressing our most challenging issues.
To hear more inspiring stories from the women at S&T’s national labs, listen to the Technologically Speaking Podcast.
