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2016 Earth Observation Day Poster

Change is everywhere. We see change best when we can compare things—like before and after images. Landsat helps us do this. Landsat satellites have been imaging our planet over four decades, allowing us to see how the Earth’s land surface has changed. This poster provides examples of change over time as observed by Landsat satellites.

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Last Updated March 18, 2026, 23:59 (UTC)
Created June 23, 2021, 19:39 (UTC)