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Alexander Goetz didn't see Landsat satellites as cameras in space. He saw them as precision instruments that could unlock secrets about our planet, and his vision changed remote sensing forever.
For over 50 years, NASA's Landsat satellites have watched our planet change, and the newest one is capturing sharper images than ever before. Landsat 9 helps map the entire Earth every eight days, spotting everything from wildfires to melting glaciers with stunning clarity.