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 space-based technology that lets GPS-equipped motorists constantly update their precise location will undergo a major test of its ability to rapidly pinpoint the location and magnitude of strong earthquakes across the western United States.

WASHINGTON, April 24, 2012 /PRNewswire-USNewswire/ -- The space-based technology that lets GPS-equipped motorists constantly update their precise location will undergo a major test of its ability

Japan’s recent magnitude 9 earthquake, which triggered a devastating tsunami, relieved stress along part of the quake fault but also has contributed to the buildup of stress in other areas, putting some of the country at risk for up to years of sizeable aftershocks and perhaps new main shocks.