A 42,000-year-old tree reveals Earth’s last magnetic pole flip, exposing the planet to deadly radiation. Scientists warn a ...

For example, when was the last time you thought about Earth’s magnetic field ... most of the solar wind and forms a ...

With the right preparations and technological solutions in place, aviation would continue to operate safely, even during a ...

On the one hand, this magnetic shield is responsible for life forming on Earth in the first place, as it protects the surface from most of the Sun’s harmful UV rays. In a less existential way ...

The Earth is not alone in this fickleness: The sun's magnetic shield appears to reverse its ... Moreover, while a severe weakening or disappearance of the magnetic field would lay us open to ...

David Bressan is a geologist who covers curiosities about Earth. Without its magnetic ... escape of gases. A strong magnetic field can act as a shield, preventing solar wind to strip away a ...

Earth’s magnetic field has behaved even more dramatically in the past, with the magnetosphere weakening so much that its polarity reversed. This flips the magnetic north and south poles ...

NASA via Rawpixel For decades, Earth’s magnetic north pole has been ... Geophysicists have long speculated that the weakening of the magnetic field could signal a potential geomagnetic reversal ...

previously told Business Insider that such weakening can accompany a process in which magnetic north and south switch places. That has happened several times in Earth's history; the latest ...