Bombers sent days ahead of US official's visit to Manila Planes seen around hotly disputed Scarborough Shoal Analysts say ...

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.

How many gauges are required in order to observe regional patterns in rainfall? Scientists compare measurements from rain gauges with satellite measurements to answer these and other related questions ...