Farther out in the tail, the lines of Earth's magnetic field have been stretched and warped into something much messier. Physicists didn't think chorus waves could form amid the stretched-out mess ...

The geographic North Pole, or “true north,” is a fixed point where all lines of longitude converge. In contrast, the magnetic ...

the angle at which magnetic field lines intersect the Earth. The turtles use these two pieces of information, which vary at every point on the planet's surface, as navigational markers that help ...

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.