Fleeting electron-hole pairs are giving scientists a new window into optimizing light-emitting devices (LEDs). Using quantum ...

Earth’s magnetic field has long been framed as a planetary force field, a protective bubble that keeps the worst of the Sun’s radiation at bay. Increasingly, though, scientists are finding that this ...

For the first time, scientists have measured a long-sought global electric field in the Earth’s atmosphere. This field, called the ambipolar electric field, was predicted to exist decades ago but ...

During the 1960s, spacecraft traveling above Earth's poles discovered a stream of particles flowing out of the Earth's poles, and theorized that there must be an unknown field driving these particles ...

Explore the fascinating physics behind current loop torque and how it interacts with magnetic fields in this detailed video! Learn how electric currents in loops generate forces and torques, ...

An electric charge (like a proton) creates an electric field in the region around it. This field points away from positive charges and decreases in strength as it gets farther away from the charge.

This section is focused on in vivo studies of human beings and animals in health and disease enabled by very-high-field magnetic resonance imaging and spectroscopy. Much of the material presented here ...

Researchers directly observed electron-hole pairs in light-emitting electrochemical cells, finding that ion-driven electric field changes affect recombination and that stable, lower-voltage fields ...