A value called Bz indicates how far south the solar wind's magnetic field is pointing, which can predict how likely the northern lights are to occur.

how to track them through interplanetary space. Our records of the Earth's magnetic field go back as far as the mid-19th Century. They suggest an extreme space weather event is likely to occur ...

the angle between Earth's magnetic field and the sun's interplanetary magnetic field changes. During equinoxes, around March ...

From the center of the solar system, rages a powerful wind. Sent by the Sun, this wind whips at speeds exceeding one million ...

The Earth's magnetic field is essential to life as we know it. But it’s something we can never see – or hear, until now. In a recent study released on Oct. 10 by the European Space Agency ...