Mar 1, 2006 • On this day in 1984, Landsat 5 was launched into orbit. Today, after 22 years of service, Landsat 5 is still operational. The original design life of Landsat 5 was just three years, but it has become the longest continuously operating Earth observation system in the U.S. civilian satellite fleet. Landsat 5’s tremendous life span is a tribute to the prodigious engineering behind the satellite.

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