In just a few days, Mars will come within 36 million miles of Earth, closer than it has been for 15 years. As the red planet nears, we’re looking back at National Geographic’s cartographic encounters ...

WASHINGTON -- National Geographic is marking World Oceans Day by recognizing the Southern Ocean as the Earth's fifth ocean. While all of the planet's ocean waters are interconnected, National ...

Earth is a sphere, so how can it be accurately portrayed on a 2D map? Simply flatten Earth into two pancakes, one depicting the Northern Hemisphere and the other the Southern, with the equator running ...

Traveler contributing editor Andrew Evans finds the “real” Equator in Ecuador. Attention all map nerds! I am one of you. That means I go nuts about imaginary lines on the Earth–especially the Equator.