It was exactly 40 years ago today when the first Landsat satellite—the ERTS-1—was launched into orbit by NASA to provide global coverage of large-scale
Digg, Digg
Wed, 07/25/2012 - 9:33am
It was exactly 40 years ago today when the first Landsat satellite—the ERTS-1—was launched into orbit by NASA to provide global coverage of large-scale