Geophysicists have modeled how Earth’s magnetic field could form even when its core was fully liquid. By removing the effects of viscosity in their simulation, they revealed a self-sustaining dynamo ...

Where did the moon’s magnetism go? Scientists have puzzled over this question for decades, ever since orbiting spacecraft picked up signs of a high magnetic field in lunar surface rocks. The moon ...

At a Thursday lecture event, Benjamin Weiss, a professor of Earth and planetary sciences at the Massachusetts Institute of Technology, spoke about his recent research on the lunar dynamo, which ...