Magnetic fields play an important—if sometimes underappreciated—part in planetary systems. Without a strong magnetic field, planets can end up as a barren wasteland like Mars, or they could indirectly ...

Inertial navigation systems based on quantum sensors, and other that use the Earth’s magnetic field, are under investigation.

SBQuantum's quantum diamond magnetometer, as explained by CEO David Roy-Guay, is set to transform navigation and Earth ...

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

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Nov 28, 2025, 07:59am EST Map of the strength of the Earth's ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. How the universe got its large magnetic fields has remained one of the stickiest outstanding ...

More than a decade of satellite monitoring has mapped Earth’s magnetic field as it subtly altered between 2014 and 2025 — and what scientists have learned is remarkable. The South Atlantic Anomaly, a ...

Our protective blanket helps shield us from unruly space weather. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Earth's magnetic field — also ...