Earth may not have seven continents after all. From the earliest of grades, schoolchildren around the world have memorized ...

About 340 million years ago, the Appalachian Mountains were as tall as the Himalayas and spanned across what is today three continents.

Voters supported legalizing same-sex marriage 62% to 38% in a nonbinding nationwide referendum. Second country in the world ...

Common projections shrink the size of Africa, but experts have long debated whether creating a precise map is possible.

Dust carried across the Atlantic is one of the great wonders of the weather world. This is the most significant cloud so far ...