Free Satellite Imagery Availability
Scale | Spacing | Data series | Coverage | Provider | Web Source | Notes |
Global | 1-8 km | MODIS | Worldwide | NASA | Blue Marble
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1 km, 500m, and 250 m | MODIS | Much of the world | http://rapidfire.sci.gsfc.nasa.gov/subsets/ | World View Snapshots | ||
Regional | 15 m and 30 m | Landsat TM Geocover 2000 and Geocover 1990 | Worldwide | NASA |
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30 m | Landsat | Global | USGS | USGS archive, includes Landsat 8, imagery back to early 1980's | ||
10 m | Sentinel 2 | Global | ESA |
For better resolution, you will enter the realm of commercial imagery, and can expect significant costs. You could also check aerial photography.
Last revision 1/25/2019