Longest-running continuous view of Earth from space turns 40 - SlashGear

It was exactly 40 years ago today when the first Landsat satellite-the ERTS-1-was launched into orbit by NASA to provide global coverage of large-scale human activity like building cities and farming over the long term. The very first Landsat satellite was sent into orbit on July 23, 1972 from Vandenberg Air Force Base in California and marks the world's longest-running Earth observation satellite program.

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