Pyroclastic density currents (PDCs) represent some of the most formidable and complex volcanic phenomena, characterised by a turbulent mixture of solid particles and gases that surge down slopes at ...

Learn techniques for surviving a pyroclastic flow. 'Charlie's Angels' star Jaclyn Smith marks 80th birthday as fans praise her youthful appearance Who Else Remembers The Grandma Candy That 'Tastes As ...

Water levels in Lake Powell and Lake Mead have reached increasingly critical levels, leading to calls for "immediate action" to avert a potential collapse in the Colorado River system's water and ...