The first thing to keep in mind is that ocean currents are very thin compared to the diameter of Earth. They’re only about four kilometers (13,000 feet) deep at most, and surface currents can be just ...

Have you ever tried smashing a ball into a flat rectangle? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Walk into any school classroom and you ...

The world map is a familiar sight on classroom walls and in atlases, but you might be surprised to learn that it’s not an accurate representation of the Earth. In fact, in terms of country and ...

The Congo River is the world's only major river to cross the Equator twice, a rare feat shaped by ancient geological forces. This unique path sustains the second-largest rainforest, influencing ...