An "island" of floating pumice rocks bigger in area than Israel has been spotted in the South Pacific, New Zealand's Royal Navy said. Officers on a Royal New Zealand Air Force ship saw the rock raft ...

Volcanoes bring death and destruction, but out of the ashes life soon finds fertile ground. A unique experiment is sifting through floating debris from an ongoing volcanic event to see how microbes ...

It’s true — some rocks can float on water for years at a time. And now scientists know how they do it, and what causes them to eventually sink. X-ray studies at the Department of Energy’s Lawrence ...

This week, the tides were back to normal after the hurricane in the Gulf, making for better access to the beaches. Among the beachcombing finds were sand dollars, sargassum and pumice stone. Pumice, a ...

A “raft” of floating pumice rock the size of Manhattan is drifting towards Australia, bringing along with it new marine life that could help with the recovery of the Great Barrier Reef’s corals, half ...

Sea creatures around Australia are getting a free ride on a massive raft of pumice rock the size of Manhattan. It’s more than just a freaky, mysterious island, though. NASA satellite imagery shows ...

“The rubble slick went as far as we could see in the moonlight." London -- Sailors in the South Pacific were surprised this month to find themselves sailing through a sea of stone. Australian couple ...