Made of iron and nickel, the hot, solid sphere is about 70% the size of ... changes to this innermost layer could impact the planet’s magnetic field, which shields our world from solar radiation ...

Since the magnetic field is sustained by geological activity deep within our ... then another 1,400 miles of molten outer core, and finally, a dense sphere forms the solid inner core. What matters for ...

In this study, researchers found that the magnetic conductivity of magnetofluid can be significantly regulated by a magnetic field ... effect between a gold sphere and a silicon dioxide substrate.

Would a dramatic change in the Earth's magnetic field affect creatures that rely on it during migration? Late on a January night in 1993 I found myself on a beach on the Pacific coast of Costa ...

Over time, changes to this innermost layer could impact the planet’s magnetic field, which shields our world from solar radiation — and helps guide the migrations of many animals. Loggerhead ...