This persnickety number determines the strength of magnetic fields. It figures in everything from motors and generators to audio speakers. Oh, and without it we’d live in eternal darkness.

Muons might not behave as expected. But scientists can’t agree on what to expect. By taking stock of how the subatomic particles wobble in a magnetic field, physicists have pinned down a property of ...

A team led by physicists at Washington University in St. Louis has created quantum sensors that can survive in extreme ...

High school students in Portugal programmed a small, inexpensive Raspberry Pi computer to measure Earth's magnetic field from the International Space Station. When you purchase through links on our ...

A solar tsunami observed by NASA’s Solar Dynamics Observatory (SDO) and the Japanese Hinode spacecraft has been used to provide the first accurate estimates of the Sun’s magnetic field. Solar tsunamis ...