How does a magnetic compass work? Well, it’s all down to basic physics and human ingenuity. The key component of a standard baseplate compass is its magnetized needle, which is allowed to spin freely ...

Long-term satellite measurements show that Earth’s magnetic field is changing faster and more unevenly than expected, driven ...

Although the Earth’s magnetic field is reliable enough for navigation and is also essential for blocking harmful solar emissions and for improving radio communications, it’s not a uniform strength ...

Our planet's invisible shield is changing in ways that scientists are only beginning to understand. Over the past two hundred years, Earth's magnetic field has weakened by around nine percent on a ...

The magnetized needle of a conventional compass wants to align with Earth’s magnetic field—helpful, unless you’re near the ...

A magnetometer is a device that measures magnetism: the direction, strength, or relative change of a magnetic field at a ...

In the blink of an eye in geological time, Canada has lost one north pole but gained another, a new and different claim to be ...

Long before life thrived in Earth’s oceans, the planet’s magnetic field became disorganized. Deep within the ancient rocks of Morocco, scientists have recovered one of the clearest records of that ...

At some point during our primary school careers, most of us probably constructed a simple compass, often by floating a ...