A volcanic eruption has rocked southern Japan, sending an ash cloud soaring 2,800metres into the sky a day before a prophecy said a 'mega disaster' would hit. Japan's Meteorological Agency is now ...

Young Mars would have been a staggering place to explore. The Red Planet was covered in flowing rivers of both water and lava. At the time, a series of four volcanoes — Olympus Mons and the three ...