Scientists found a magnetic mineral never before seen naturally in Moon samples; Chang’e-6 brought the material back from the lunar surface, where it survived inside tiny impact-glass particles
About 4.25 billion years ago, the Moon possessed a powerful core dynamo with a field strength comparable to or even exceeding modern Earth’s. This magnetic field, generated by circulating molten metal, completely shut down as the interior cooled and core crystallisation ceased, leaving the Moon without a global magnetic field in the present. While it…
