Beneath Earth s surface, nearly 3,000 kilometers down, lies a mysterious layer where seismic waves speed up inexplicably. For ...

Arsia Mons, which dwarfs Earth's tallest volcanoes, and its two neighboring volcanoes are often surrounded by water ice ...

One of the world's most active volcanoes, Kilauea, has spewed lava fountains of 260 feet above Hawaii. Hawaiian Volcano Observatory said in its most recent update that the eruption "has stabilized ...