 The world of aviation continues to evolve towards satellite technology to improve safety, communication surveillance and navigation. By extending the protection of the 1090 MHz frequency to satellites, significant safety gains can be made that will have an immediate impact as early as 2017. Since the 1940s, radar has been the primary method to monitor aircraft movements, and it remains so until today. In recent years, ADS-B has become a widely accepted means of surveillance, providing critical information to stakeholders. Current systems are limited to land-based areas, leaving 70% of the world uncovered, creating inflexible and inefficient routing over much of the world's airspace. These global blind spots will soon disappear. In 2017, ADS-B receivers on satellites will relay signals from all ADS-B-equipped aircraft to air traffic controllers worldwide. This will provide near real-time visibility of ADS-B-equipped aircraft in any flight information region, including in currently unsurveilled oceanic, polar, desert and mountainous airspace. Space-based ADS-B will enable the optimization of flight paths, increase operational and fuel efficiency for airlines, lower emissions, expand air traffic management efficiency and capacity, and significantly enhance safety, all with little investment in infrastructure. Space-based ADS-B receivers will leverage existing and proven 1090 ADS-B transponders and allow all stakeholders to meet calls for performance-based global flight tracking and safety. With the adoption of space-based ADS-B surveillance, no aircraft will ever be lost again. To learn more about space-based ADS-B and air traffic surveillance, visit globalflightsafety.org.