For over half a billion years, Earth’s magnetic field has risen and fallen in sync with oxygen levels in the atmosphere, and scientists are finally uncovering why. A NASA-led study reveals a striking ...

Geologic records reveal that magnetic field strength and oxygen levels rise and fall together, implying deep-Earth processes ...

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 ...

The planet's magnetic field may have collapsed around 600 million years ago, enabling a major oxygenation event and perhaps supercharging evolution. When you purchase through links on our site, we ...

Christopher Davies receives funding from NERC. The Earth’s magnetic field, generated 3,000km below our feet in the liquid iron core, is crucially important to life on our planet. It extends out ...

EARTH'S MAGNETIC FIELD 4 BILLION YEARS AGO Previous research by Tarduno found that Earth's magnetic field is at least 4.2 billion years old and has existed for nearly as long as the planet.

Extending from Earth like invisible spaghetti is the planet's magnetic field. Created by the churn of Earth's core, this field is important for everyday life: It shields the planet from solar ...

Here’s how it works. Around Earth, an invisible magnetic field traps electrons and other charged particles. (Image credit: NASA's Goddard Space Flight Center) ...

Around 800,000 years ago, magnetic north hovered over Antarctica and reindeer lived in magnetic south. The poles have flipped several times throughout Earth's history.

But little is known about the magnetic field as it existedjust after the Earth formed, around 4.5 billion years ago. To learn more aboutthis early magnetic field, John Tarduno of the University of ...

The newobservations "overturn the way that we understand how the sun's magneticfield interacts with the Earth's magnetic field," said David Sibeck of NASA'sGoddard Space Flight Center in Greenbelt ...