NASA FIRMS global fire alerts (2007 onward)
NASA's Fire Information for Resource Management System began delivering free satellite fire detections worldwide, drawn from instruments like MODIS and VIIRS. It gave every country a baseline view of active fires.
Fire agencies globally gained a shared, no-cost data feed for large blazes.
Its coarse resolution and slow revisit left a gap for small or fast fires that dedicated systems now aim to fill.
Greece's constellation is a bet that a national, higher-resolution system beats relying on shared global feeds that miss small fires.
