Since we were young, we've learned that Africa, Antarctica, Asia, Oceania, Europe, North America and South America make up the seven continents, but a study published in the journal Gondwana ...

Disregard what you learned in geography class—Earth may not have seven continents after all. From the earliest of grades, schoolchildren around the world have memorized the same lineup: Africa ...

Some geologists therefore suspect Iceland is not a lonely island at sea, but actually part of a continent (although as to which one, that can get complicated, too). That notion finds support off ...