Across the planet, water makes up 71% of Earth’s surface. The remaining space is covered by land — continents and islands. Before Earth’s land formed the seven continents in the present day, all the ...

Australia is not only the smallest continent but also Earth's largest island. But the land Down Under wasn't always so isolated; it was once part of a bigger supercontinent. So when did Australia ...

About 3,500 feet under the south Pacific sits a piece of land 2 million square miles in size — about half as big as Australia. But scientists can't agree on whether this submerged land mass, called ...