Nobody knew what they are, and whether they are only a temporary phenomenon, or if they have been sitting there for millions ...

The isolated land mass, also known as Bjørnøya ... according to Earth Observatory. Dutch explorers first discovered Bear Island in the late 16th century and named it after a polar bear (Ursus ...

North Sentinel Island remains one of Earth's last true time capsules—its ... A thin strip of white-sand beaches encircles the land, broken only by the jagged remains of dead coral reefs, which ...

We like to think of land as a fairly static ... This is hardly the first time the ghost island of the Kumani Bank has appeared and disappeared, NASA's Earth Observatory wrote in a statement.