During a brief but dramatic chapter in Earth's history about 41,000 years ago, the planet’s magnetic field nearly collapsed. What followed was a cascade of environmental and biological changes ...

This generates a poloidal magnetic field that bends the plasma current into a circle (green vertical circle). Bending the column into a circle prevents leakage and doing this inside a doughnut-shaped ...

Geophysicist Daniel Lathrop wants, among other things, to use it to predict when the Earth’s magnetic field will next reverse. Over the course of our planet’s history, the field has flipped ...

With this approach, nanoparticles would passively leak from the gaps in blood vessels of a tumor and then a magnetic field could spread them more evenly throughout the mass. In a past study ...

NASA scientists are concerned about a strange anomaly in Earth's magnetic field, which can make life at the International Space Station difficult. The vast and evolving phenomenon is called the ...