Main image, an illustration shows the Earth's magnetic field. Inset, prehistoric aquatic animals. A weakening in the magnetic field may have triggered an increase in oxygen concentrations on Earth ...

Many animals seem to have a mysterious sixth sense that allows them to travel through the world in ways that humans can only ...

Then, Earth’s core was liquid, not solid. The liquid inner core churned as it released heat into the cooler mantle, moving molten iron around the core and enabling Earth’s magnetic field to exist.

This magnetic field is vital to life on Earth because it shields the planet from radiation emitted by the sun. It is generated in our planet's outer core by swirling liquid iron around 1,800 miles ...

Beneath the bogs of New Zealand’s Northland is a massive Ngāwhā kauri, living from 41,000 to 42,500 years ago, which gives an isolated, unbroken record of a period when Earth’s magnetic field declined ...

The CME caused Earth’s bow shock—the shockwave that typically forms when a CME hits Earth’s magnetic field—to disappear for two hours, from approximately 8:30 a.m. to 10:30 a.m. ET.

An illustration of Earth’s magnetic field. Solar material and energy gets funneled towards the poles where it can create auroras. NASA's Goddard Space Flight Center ...

New NASA research demonstrates that 540 million years of Earth’s magnetic field changes have corresponded to surface ...

Every breath we take in contains 21% oxygen, the gas that makes life on Earth possible. Oxygen, in its combined oxide state, ...

The Earth's magnetic field is essential to life as we know it. But it’s something we can never see – or hear, until now. In a recent study released on Oct. 10 by the European Space Agency, ...

And because the movement of Earth’s liquid metallic core creates its magnetic field, the field itself is complex — far more so than the standard Earth-as-a-bar-magnet illustrations imply.

Further, physicists like Cohen say that the Earth’s magnetic field isn’t going to flip overnight. This is something that reverses on a time scale between 100,000 and 1,000,000 years.