Experts warn that "something" in the core of the Earth is causing the magnetic pole to shift. North Pole is shifting toward Siberia and raising concern ...

Magnetic resonance imaging (MRI) is a non-invasive biomedical imaging technique that uses a strong oscillating magnetic field to induce endogenous atoms such as hydrogen, or exogenously added ...

The auroras occur most often in areas south of the poles because the Earth’s tear-shaped magnetic field ... which are located near the geographic poles. As the particles collide with atoms ...

This article is adapted from Joel Sartore’s new book, Vanishing, published by National Geographic Books. Joel Sartore has been photographing animals for his Photo Ark project for 13 years.