To celebrate the 40th anniversary of the United States' Landsat Earth-observing program, NASA and the U.S. Geological Survey (USGS) are holding a contest that will offer winners customized satellite views of changing local landscapes.

http://www.nasa.gov/topics/earth/features/landsat_contest.html

The vast potential of ESA’s upcoming Sentinel-2 satellites came into focus last week at a symposium in Italy on how they will benefit current and future projects that exploit Earth observation data.

A water-rich polka dot pattern takes over the traditional rectangular patchwork of fields in this time series animation of 40 years of Landsat images.

GREENBELT, Md., Feb. 14, 2012 /PRNewswire-USNewswire/ -- A new NASA satellite instrument that makes a quantum leap forward in detector technology has arrived at Orbital Sciences Corp.