Scientists have just plotted changes in Earth's axis through laboratory measurements. To do this, they constructed the world's most stable ring laser. Previously, scientists were only able to track ...

Earth's axial precession is a gyroscopic wobble, analogous to a spinning top, causing its axis of rotation to trace a cone over time. The primary cause of Earth's precession is the gravitational ...

At the centre of the earth is a huge ball of liquid iron. It is always spinning and causes the earth to spin with it. Every few million/billion years the iron core shifts its direction of spin. When ...

We call a day 24 hours because it’s a clean, reliable number. But Earth isn’t a perfect clock. When our planet formed 4.6 billion years ago, a day lasted a mere six hours. By the time the dinosaurs ...

Richard Gross, of NASA's Jet Propulsion Laboratory, calculates that last week's earthquake off Japan's coast may have shortened the length of Earth's days by about 1.26 microseconds and shifted its ...

Because of Earth's dynamic climate, winds and atmospheric pressure systems experience constant change. These fluctuations may affect how our planet rotates on its axis, according to NASA-funded ...

There are very few objects in the Universe that stand still; almost everything we know of rotates in some way. Every moon, planet, and star we know of spins on its own axis, meaning that there's no ...