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Map of the Earth showing the present-day deviation from expected magnetic field direction. The star is Saint Helena

South Atlantic anomalies existed 8 – 11 million years ago

Earth magnetic field. Credit: Carnegie Institution for Science

How does Earth sustain its magnetic field?

Earth’s geomagnetic field

Earth’s magnetic field can change 10 times faster than previously thought

Next to Prof. Oded Aharonson is the tri-axial Helmholtz Coil used to generate the magnetic field during the growing of the ice samples

The magnetic history of ice

This visualization shows the magnetic field around Earth, or the magnetosphere. Earth’s magnetic field origins are still a mystery, a new MIT study finds. Credit: Greg Shirah and Tom Bridgman, NASA/Goddard Space Flight Center Scientific Visualization Studio.

Origins of Earth’s magnetic field remain a mystery

Photomicrographs showing anorthosites with 'correct' and 'wrong' proportions of chromite from the Bushveld Complex, South Africa. Credit: Wits University

Researchers unravel the mystery of non-cotectic magmatic rocks

Earth

Earth’s Mantle, Not Its Core, May Have Generated Planet’s Early Magnetic...

Study co-author Rob Coe and Trevor Duarte orienting cores from a lava flow site recording the Matuyama-Brunhes magnetic polarity reversal in Haleakala National Park, Hawaii, in 2015

Earth’s last magnetic field reversal took far longer than once thought

Earth inside

New findings on Earth’s magnetic field

Visualization of the interior of the Earth's core

Geomagnetic jerks finally reproduced and explained

Map of the locations and depths of the deep low-frequency (DLF) earthquakes beneath the Laacher See Volcano ("Lake Laach Volcano") in Germany. Brittle earthquakes are marked as circles, DLF events as stars. Credit: Hensch et al.

Deep low-frequency earthquakes indicate migration of magmatic fluids beneath Laacher See...

The complex history of Earth’s magnetic reversals

The experiment on La Palma: The laser beam (yellow) generates an artificial guide star in the mesosphere. This light is collected in the receiver telescope (front left). The laser source and the receiver telescope are eight meters away from each other. Credit: Copyright Felipe Pedreros Bustos

Earth’s magnetic field measured using artificial stars at 90 kilometers altitude

Intensity at Earth's surface (left) and radial field (Br) at the CMB (right).

Earth’s magnetic field is not about to reverse

moon's mantle

Magma ocean may be responsible for the moon’s early magnetic field

Earth’s geomagnetic field

New data helps explain recent fluctuations in Earth’s magnetic field

Earth magnetic field

Mysterious ‘geomagnetic spike’ 3,000 years ago challenges our understanding of the...

Lunar dynamo’s lifetime extended by at least 1 billion years

Nickel is crucial for Earth’s magnetic field

Study finds Earth’s magnetic field ‘simpler than we thought’

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