Earth is often described as a circle or an oval, but it is neither. As the planet spins more than 1,000 miles per hour at the ...

If you've ever been taught about how Earth orbits around the sun, you might well think our planet travels along an oval-shaped path that brings it much closer to the sun at some times of the year than ...

When large masses of water are moved from one place to another, this changes the shape of Earth and leads to a phenomenon called true polar wander In an ideal model of our planet, the axis around ...