The swirling flows of Earth’s perpetually changing ocean come to life in a new NASA scientific visualization that captures the movement of thousands of ocean currents.
East African Rift Valley a Geologic Maze
The East African Rift, caused by fracturing of Earth's crust, is one of the great tectonic features of Africa. This astronaut photograph of the Eastern Branch of the Rift near Kenya's southern border highlights the classical geologic structures associated with a tectonic rift valley.
Government Spy Satellites White Elephants?
Delays and cost overruns in military and spy satellite programs are well known, and things aren't getting any better, according to a March 29 report from the U.S. Government Accountability Office.
Earth Observation Drones Protect Spy Satellite
Before the launch of a top-secret spy satellite from Vandenberg Air Force Base, a fleet of small drones will be doing some spying of their own.
Antarctica's Blue Ice Height Increases
Field measurements in Antarctica's spectacular blue ice region validate the accuracy of the European Space Agency's CryoSat mission and show that this part of the ice sheet has increased in height.
Groundwater Animation on Big Apple Big Screen
To highlight declines in Earth's groundwater, a visualization of world groundwater reserves will run several times each hour through April 22 on the big screen in New York's Times Square.
Satellite Images Reveal Ancient Syrian Settlements
Archaeologists who have digitized spy-era film satellite images have uncovered more than 9,000 potential ancient human settlements in Syria.
Switchgrass the Next Biofuel?
Armed with satellite-derived data of Nebraska grasslands, U.S. Geological Survey scientists demonstrate high potential for growing biofuel crops with relatively little energy input and environmental impact.
Pacific Island Blows off Steam
A steam plume blows south from the peak of Pagan Island's northernmost volcano in this photograph by an astronaut on the International Space Station (ISS). The ISS was located over the Pacific Ocean approximately 480 kilometers to the southeast of Pagan Island when the image was acquired on March 6, 2012.
New Evidence from Satellites: Venice Still Sinking
The water flowing through Venice's famous canals laps at buildings a little higher every year”and not only because of a rising sea level.
