Mount Etna sprayed lava into the sky above Catania, Italy, into the early hours of April 30. Video captured by Giuseppe ...

One struck a man, knocking him out. Ashes rained down on the men. They seemed doomed. But the eruption stopped as suddenly as it had begun, and the three men survived. From 1914 to early 1915 ...

Climate change is causing global temperatures to increase and average sea levels to rise. The Earth's orbit round the Sun varies in shape. Global temperature increases and decreases depending on ...