Buried more than 3,000 miles beneath our feet, Earth’s solid inner core was once thought to be unchanging—locked in place at the heart of the planet. But new research has revealed something much more ...

So, let's do a little experiment. Let's say we reverse Earth's rotation. What then? Well, you'll change a lot more than just the sunsets. This may seem like a ridiculous scenario at first.

The Earth’s magnetic field is a shield that protects us from the sun’s harmful radiation. It’s a fascinating phenomenon that ...

The inner core, as big as the Moon, interacts with the liquid outer core, helping power Earth’s magnetic field. ‘Climate bombshell’: Lakes lose oxygen 9X faster than oceans in global crisis ...

Geophysicist Daniel Lathrop wants, among other things, to use it to predict when the Earth’s magnetic field will next reverse. Over the course of our planet’s history, the field has flipped ...

Such is the case with the Earth's magnetic field. Every so often, our planet's magnetic poles reverse polarity (see When Compasses Point South). Compass needles have always pointed north ...

The Earth is not alone in this fickleness: The sun's magnetic shield appears to reverse its polarity approximately every 11 years. Even our Milky Way galaxy is magnetized, and experts say it ...