When we think about the Earth’s magnetic field, we often associate it with compasses and navigation. However, did you know that our planet’s magnetic field has a rich history of change, including ...

The geomagnetic field, generated by the convecting motions of Earth’s liquid outer core, is a fundamental facet of our planet’s evolution. Its long‐term behaviour is recorded in rocks through the ...

The study of the earth's changing magnetic field at geological and societal timescales, especially through the analysis of remanent magnetism in rocks and human artifacts. The main function of the ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American With each challenge it encountered, the more ...