It's a truism among oceanographers that there is more accurate mapping of the surface of the moon and Mars than of the deep-ocean floor. That's especially true for the Bismarck Sea, a relatively deep body of water north of Papua New Guinea.

On the morning of May 21, 2026, Shiveluch volcano punched a fresh column of ash into the skies above Russia’s Kamchatka Peninsula, continuing a months-long stretch of unrest at one of the most active volcanoes on Earth.

Police say the hikers ignored a climbing ban imposed after recent eruptions

New research from the University of St Andrews has precisely dated an eruption from Newberry Volcano and discovered that its ash spread more than 5,000 km across the globe, far further than previously thought for an eruption of its size.

Scientists predict there is a one in six chance of a massive eruption this century, but what impacts would such an event cause?