Landsat images are part of a Smithsonian Institution traveling exhibition called “Earth from Space.” The exhibit was jointly developed by the Smithsonian, the U.S. Geological Survey (USGS) and Global Imagination. The tour kicks off at the Smithsonian National Air and Space Museum on Saturday, November 11.
There is also an accompanying online exhibition that features the satellite images along with information on the satellites themselves and lesson plans for teachers.
+ Visit Earth from Space (external link)

Above the Earth, Below the Surface: Landsat’s Role in Monitoring Water Quality
Safeguarding freshwater resources is crucial, and while scientists use a variety of ground-based techniques to gauge water quality, the Landsat program has provided water quality data from orbit for decades.