NASA's Seasat satellite in orbit in 1978. The payload at the bottom of the satellite contains the first synthetic aperture radar NASA ever put in space.

Photo by NASA.

 A time capsule of satellite imagery of the earth will become available to scientists this month.

On June 28, digital imagery from more than three decades ago will be released by the Alaska Satellite Facility at the University of Alaska Fairbanks Geophysical Institute, NASA’s processor and distributor for this type of data. The images reveal an unprecedented view of sea ice, waves, forests, glaciers and more.