A vast and evolving anomaly in Earth’s magnetic field, situated above South America and the southern Atlantic Ocean, ...

Any object with a magnetic field ... When the solar wind approaches Earth, it pulls at the magnetic field, distorting its field lines. Eric Donovan, an assistant professor of physics and astronomy ...

A permanent magnet is always magnetic. 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 ...

Magnetotactic bacteria synthesize magnetic iron nanominerals ... that allows the bacteria to passively align with Earth's geomagnetic field lines in both the Northern and Southern Hemispheres.