Some scientists think we can better understand volcanoes by learning how the gaseous vortexes emerge. By Carolyn Wilke Some volcanoes perform a rather subtle trick: blowing rings of vapor that waft ...

These ghostly hoops have been spotted above volcanic events around the world. But how they form has long been a mystery. Mount Etna—located in Catania, Italy—is one of the rare volcanoes that can blow ...

When you’re mulching your trees, you want to create a doughnut shape around them with the mulch so they will receive vital nutrients and receive water at the roots without dampening the tree’s trunk.

How do volcanoes work? What happens beneath their surface? What causes the vibrations—known as tremor—that occur when magma ...