SIOUX FALLS, S.D. (AP) — The U.S. Geological Survey and NASA are celebrating 25 years of partnership at the USGS Earth Resources Observation and Science Center.

The agencies set up their partnership at the EROS Center north of Sioux Falls in August 1990 to collect and disseminate critical land remote sensing information. The facility makes more than 2,450 data-filled images of the Earth available for download each day.

NASA in April 2013 launched Landsat 8, its newest Earth-observing satellite. Images archived at the EROS Center help document forest fires, tsunamis and everyday changes in the Earth's geography.

Representatives from NASA, the Department of the Interior and the USGS were on hand Thursday to honor the long-standing partnership.

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