When NASA's Terra satellite passed over Alaska's erupting Bogoslof Volcano the MODIS instrument aboard captured an image of a large ash plume surrounded by clouds making it appear to be wrapped in white.
The physical mechanism causing the unique, sharp bend in the Hawaiian-Emperor seamount chain has been uncovered in a collaboration between the University of Sydney and the California Institute of Technology (Caltech).
Scientists have discovered the world's longest known chain of continental volcanoes, running 2,000 kilometres across Australia, from the Whitsundays in North Queensland to near Melbourne in central Victoria.
Nearly 325,000 people could be affected by an eruption of Cotopaxi, the volcano looming beyond the Ecuadoran capital of Quito, officials said Monday.
In June, 1991, Mount Pinatubo in the Philippines exploded, blasting millions of tons of ash and gas over 20 miles high - deep into the stratosphere, a stable layer of our atmosphere above most of the clouds and weather. Certain ...
Since 1983, the 180,000 residents of the Big Island of Hawaii have lived in the wake of the pollution caused by the active shield volcano Kilauea. The destructive nature of the volcanic smog ("vog") has imprinted a significant ...
Plumes seen reaching high above the surface of Mars are causing a stir among scientists studying the atmosphere on the Red Planet.
Volcanic ash poses a significant hazard for areas close to volcanoes and for aviation. For example, the 2010 eruption of Eyjafjallajökull, Iceland, clearly demonstrated that even small-to-moderate explosive eruptions, in ...
A Tongan volcano has created a substantial new island since it began erupting last month, spewing out huge volumes of rock and dense ash that has killed nearby vegetation, officials said on Friday.
Satellites are showing clouds of sulphur dioxide from Iceland's restive Bardarbunga volcano.