A powerful storm has left hundreds of thousands of homes without power and caused massive travel disruptions in the United ...

Satellite imagery from the National Oceanic and Atmospheric Administration Wednesday showed the extent of the snow that covered the South.

Satellite images help identify large areas of pollution caused by fires, dust or sand storms, volcanic eruptions, large industrial sources, or the transport of man-made pollution from other regions.

This page contains programming that requires a scriptable browser. If you have disabled="true" scripting in your browser then you may wish to enable it so that the ...