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

The historic alignment of true, magnetic and grid north is set to leave England, three years after they combined in the ...

For the first time in the history of solar observation, NASA has made the Sun’s invisible magnetic behavior visible. Using ...

NASA’s ESCAPADE mission launched in 2025 to study Mars’ magnetic field and how solar wind has stripped away the planet’s atmosphere over time ...

If you read about Hall effect sensors — the usual way to detect and measure magnetic fields these days — it sounds ...

Important instruments for neuroscience and medical diagnostics, optically pumped magnetometers measure responses of polarized atoms to produce information about the low-frequency external field. They ...

Physicists at NASA and Princeton generate electricity from the Earth's rotation: could wind energy be our energy source of ...

Warm dense matter is a state of matter that forms at extreme temperatures and pressures, like those found at the center of ...

Pigeons may sense Earth’s magnetic field using their inner ear, sending signals to brain areas that help with navigation and memory.

A citizen-led EMF monitoring project and Vineyard Wind’s assurances meet in Barnstable, where questions about safety continue ...

Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t pose a threat to life Earth’s magnetic field surrounds the planet, with ...

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 ...