After more than 16 years of operation, NASA’s Earth Observing-1 (EO-1) spacecraft was decommissioned on March 30. The EO-1 satellite was a component of NASA’s New Millennium Program to validate new technologies that could reduce costs and improve capabilities for future space missions. Aboard EO-1 was the Advanced Land Imager (ALI) instrument developed by MIT Lincoln Laboratory as an alternative to the land-imaging sensor that was used by the Landsat Earth-observing program.