A tokamak is an experimental device designed to confine hot plasma using a powerful magnetic field. Its goal is to replicate the nuclear fusion reactions that occur naturally in stars, in order to ...

The Unprecedented Speed of Past Reversals A study by geophysicists from UC Berkeley and their Italian and French colleagues ...

A perfectly preserved ancient tree fossil offered scientists an unprecedented view into a moment 42,000 years ago when the Earth’s magnetic field went haywire. The compelling 2021 study tells ...

But never fear — this shape-shifting won’t directly affect life on Earth. Over time, changes to this innermost layer could impact the planet’s magnetic field, which shields our world from ...

If it weren’t for the magnetic field that surrounds our planet, blocking cosmic radiation and solar wind, Earth would likely have little atmosphere to speak of. Life (at least of the human variety) ...

Earth's magnetic field occasionally bursts into song — but these compositions are written with electromagnetic radiation, not sound waves. When converted to audio signals, though, these strange ...

One of Earth’s deepest mysteries lies beneath our feet: the planet’s inner core.Made of iron and nickel, the hot, ...

In mid-December of 2024, scientists officially updated the World Magnetic Model (WMM), which helps keep track of our planet’s magnetic north and its chaotic and relatively unpredictable movements.