Any opening in the ground that emits hot steam or gas is a fumarole. Fumaroles are common on the flanks of volcanoes as well as in their craters and calderas. Extensive fumarole fields occur in areas where a shallow volcanic heat source is overlaid by...

A natural hole through which gas or steam is vented into the atmosphere from the side of a volcano or a region of volcanic...

A fumarole (Latin fumus, smoke) is an opening in Earth's (or any other astronomical body's) crust, often in the neighborhood of volcanoes, which emits steam and gases such as carbon dioxide, sulfur dioxide, hydrochloric acid, and hydrogen sulfide. The...

The Mars rover Spirit is racing against time to reach a resting spot for the winter after a giant dust storm drained much of its energy, scientists said Monday. Spirit has until Christmas to drive to the sunny slope of a low plateau where it...