July 17, 2012 • NASA and the U.S. Geological Survey (USGS) will hold a news conference at 11 a.m. EDT, Monday, July 23, to highlight the accomplishments of the world's longest-running Earth-observing satellite program -- Landsat. The briefing will be held at the Newseum at 555 Pennsylvania Ave. NW, Washington, and feature extensive imagery of our changing planet and local U.S. landscapes.

http://landsat.gsfc.nasa.gov/news/news-archive/news_0486.html