Spinoff is NASA's annual publication highlighting commercialized NASA technologies. For over 40 years, NASA has transferred technology to the private sector, resulting in products and services in many fields. The document lists and describes the top 20 NASA spinoff technologies from the past 5 years, including a water filtration system providing safe drinking water worldwide, remote-controlled tractors with precision of 1 centimeter, and a bacterial spore detection system now used for anthrax detection.