Landsat: 42 Years of Earth from Space Photos | Video

NASA's first Landsat mission launched in July 1972. Seven more satellites have been launched since. Two of these, Landsat 7 & 8, are still active. The program acquired science imagery of natural disasters, urban change, water, ice, and farming. (Full Story on Live Science)

Video Show: Over Earth - Majestic Views from Orbit


credit : NASA