Rising more than twice the height of Mount Everest, Olympus Mons dominates the landscape of Mars and holds the title of the ...
A dormant volcano in Ethiopia erupted after 10,000 years of silence. This event shows how the world's little-known volcanoes pose the greatest threat.
On some Mars images, Olympus Mons does not look dramatic at first glance. It sits there quietly, a wide pale rise against ...