How the European Space Agency preserves five decades of Earth observation data
The European Space Agency maintains a massive archive of satellite imagery and environmental data stretching back to the 1970s. This video explores how they preserve these historical records and continuously refine them to ensure they remain compatible with modern scientific analysis.
The ESA Heritage Missions data archive serves as a repository for information collected from past satellite missions. By keeping this historical record intact, the agency provides researchers with the longitudinal data necessary for long-term environmental and planetary studies.
Preservation is only the first step. The agency actively reprocesses older datasets, applying modern algorithms to improve data quality and accuracy. These updates ensure that legacy information remains useful and directly comparable to the high-resolution products generated by current satellite missions.
