Earth-Save

Terra is the flagship satellite of NASA’s Earth Observing System, a series of satellites gazing down on our planet from the unique vantage point of space.  Focused on measurements important for U.S. and international scientists, Terra helps research how Earth’s lands, oceans, air, ice and life function together as an environmental system.

This photo of our planet was taken by the Earth Observing System flagship Terra.  This spectacular "blue marble" was the most detailed true-color image of the entire Earth to date.  Using a collection of satellite-based observations, scientists and visualizers stitched together months of observations of the land surface, oceans, sea ice and clouds into a seamless true-color mosaic of every square kilometer of our planet.

See more at SpaceToday