Answer:
The USGS Global Visualization tool will only display
scenes from the USGS archive. For many locations
outside the U.S., there may be scenes that were
collected by the sensor but the data is not archived
or distributed by the USGS EROS Data Center. These
scenes may still be available from other International
Ground Stations. Please note that this data is not a
product of the USGS EROS Data Center, and therefore
the prices, available formats, and/or processing
options may vary according to the data provider.