Pictures may enliven us, but other data, such as information about magnetic fields, add a huge amount to our understanding of ...

A weak magnetic field likely attracted matter inward, contributing to the formation of the outer planetary bodies, from ...

It has an invisible magnetic field. Only certain materials, such as iron, feel a magnetic force. Permanent magnets can come in lots of different shapes and sizes. Bar magnets and horseshoe magnets ...

Fluid-rock interactions on ancient Mars may have produced abundant magnetic minerals that preserved unusually intense records ...