The world's strongest magnet isn't just science fiction: it's real, ridiculously powerful, and used in some truly fascinating ...

For years, NASA has monitored a strange anomaly in Earth's magnetic field: a giant region of lower magnetic intensity in the ...

Strength of the magnetic field at Earth's surface. (ESA) The last such cataclysmic event occurred about 41,000 years ago, leaving a signature in the Laschamps lava flows in France.

Earth’s magnetic field was once 30 times weaker than it is today. This change may have played a pivotal role in the blossoming of complex life, new research found.

Earth is fortunate in having a magnetic field: it protects the planet and its life from harmful cosmic radiation. Other ...

The researchers found that rocks dating from 3.7 billion years ago captured a magnetic field strength of at least 15 microtesla comparable to the modern magnetic field (30 microtesla).

Earth's magnetic field may have been similarly as strong 3.7 billion years ago as it is today, pushing the earliest date for this planetary protective bubble back 200 million years.

But two-billion-year-old rock from South Africa suggested that at that time, the magnetic field held the same strength it does today. Then, Earth’s core was liquid, not solid.

The researchers found that rocks dating from 3.7 billion years ago captured a magnetic field strength of at least 15 microtesla comparable to the modern magnetic field (30 microtesla).

An unusual reduction in the strength of Earth's magnetic field between 591 and 565 million years ago coincided with a significant increase in the oxygen levels in the atmosphere and oceans ...

Ancient bricks inscribed with the names of Mesopotamian kings have yielded important insights into a mysterious anomaly in Earth's magnetic field 3,000 years ago, according to a new study.