Rising more than twice the height of Mount Everest, Olympus Mons dominates the landscape of Mars and holds the title of the ...

The Hayli Gubbi shield volcano, thought to be dormant since almost the last ice age, has erupted, and the volcanic plume is reaching heights at which intercontinental aircraft fly. Hayli Gubbi is ...

Hayli Gubbi, a shield volcano in northern Ethiopia, erupted for several hours on the morning of Sunday, Nov. 23 — the first eruption since the start of the Holocene. When you purchase through links on ...

The 1815 eruption produced 60 megatons of sulfur, and as a result, average global temperatures dropped by around 3°C (5.4°F).