Earth observation is no longer a niche scientific field — it's a multi-billion-dollar commercial industry feeding decisions across a dozen sectors.
1. Agriculture
NDVI vegetation indices from Sentinel-2 and Planet help farmers detect crop stress weeks before it's visible from the ground.
2. Defense & Intelligence
Sub-meter optical and SAR imagery monitors troop movements, naval activity and infrastructure. Commercial providers now publish what was once exclusively classified.
3. Insurance & Finance
Hedge funds count cars in retailer parking lots and oil-tank shadows for trading signals. Insurers use post-disaster imagery to triage claims in days, not months.
4. Climate & Environment
Methane plumes from oil wells, deforestation in the Amazon, melting Arctic ice — all monitored continuously from orbit.
5. Disaster Response
The International Charter "Space and Major Disasters" tasks satellites to image floods, earthquakes and wildfires within hours of activation.
6. Maritime
SAR detects "dark" vessels with their AIS transponders off — illegal fishing, sanctions busting and search-and-rescue.
Curious about the technology behind it? Start with our EO basics guide.