Science offers a rational explanation: many floating stones are pumice, a volcanic rock formed when lava cools rapidly, trapping gas bubbles. These air pockets make pumice less dense than water ...

leading to lots of collisions between individual pumice as they float on the sea surface. Sharp edges are shaved off, and the pumice is rapidly rounded, as shown directly from the changes in ...

The pyroclastic igneous rocks have turned into pebbles after floating on water and rubbing against one another for two months or so. Banks of pumice have covered the surface of the sea along the ...

Ukraine and the U.S. have reached an agreement on a framework for a broad economic deal that would include access to Ukraine's rare earth minerals, three senior Ukrainian officials said Tuesday ...

Floating bands of brown pumice were also observed in the surrounding waters. “This is moving from steam eruptions caused by magma coming into contact with seawater to one in which magma is ...