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

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.

Over dinner on R.V. Calypso while anchored on the lee side of Glover’s Reef in Belize, Jacques Cousteau told Phil Dustan that he suspected humans were having a negative impact on coral reefs.

Over 30 years of archived data from the US Landsat Earth-observing satellites are now available, free of charge. The majority of these products are unique to ESA’s archive and have never before been accessible anywhere else by the scientific user community.