For the first time in history, NASA is releasing dramatic images documenting the Earth's changing biology, both on land and in the oceans, as observed from space for one continuous year. The changing seasons of life, are being monitored by the Sea-viewing Wide Field-of-view Sensor (SeaWiFs) which was launched on Aug 1, 1997 and has continuously produced data since Sept. 18, 1997. The SeaWiFs mission is the first NASA Earth Science data purchase in which industry led the development of the full mission.