Earth’s inner core solidified sometime after 565 million years ago — just in time to not only save the planet’s protective magnetic field from imminent collapse, but also to kick-start it into its ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Small magnetic waves have been discovered at Earth's core, with each ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists have uncovered a previously unknown doughnut-shaped region ...

Earth’s core plays a crucial role in protecting life. It generates a magnetic field that shields the planet from the Sun’s radiation. The inner core spins separately from the outer core and the rest ...

Annual to decadal changes in the earth’s magnetic field in a region that stretches from the Atlantic to the Indian Ocean have a close relationship with variations of gravity in this area. From this it ...

Measurements of the magnetic field at the earth's surface can tell only so much about the dynamo producing it in the planet's core. Geophysicists have now used precise astronomical position data to ...

A University of California, Berkeley, geophysicist has made the first-ever measurement of the strength of the magnetic field inside Earth’s core, 1,800 miles (2,900 kilometers) underground. The ...