Research Horizons

Research Horizons The Vapor Cell Atomic Clock Advanced atomic clocks, suitable for space deployment, must allow for extended periods of autonomous constellation operation, which enhances system robustness. Additionally, advanced atomic clocks can lower a mission control station’s workload. Air Force space programs that depend on precise timekeeping, such as GPS, Milstar, and Advanced EHF (AEHF), […]  More »

Research Horizons

Research Horizons Plasma Treatment of Composite Adhesive Bonds The low density of fiber-reinforced composites—along with their adjustable high stiffness and strength—makes them the material of choice for many space applications; however, these materials are susceptible to bond failures caused by deficiencies in surface-preparation techniques. The most common preparation technique relies on mechanical roughening (often sanding), […]  More »

Research Horizons

Research Horizons Lasers Probe Atmosphere for Aerosol Characterization Aerosols are the fine particulates suspended in the air that produce hazy conditions. These small particles play a critical role in climate and weather, and directly affect how much solar energy is retained or reflected by Earth’s atmosphere. Their primary influence is through scattering of solar radiation, […]  More »

Research Horizons

Research Horizons Securing Computer and Data Networks Internet and military data networks are under constant assault by a wide range of cyberattacks. One such attack on the networks of a large U.S. defense contractor demonstrates the magnitude of this problem: Its networks were compromised after adversaries replicated the rotating passwords of RSA-SecurID hardware tokens used […]  More »