New research indicates that matter ejected during the supernova death of a star can fall back to neutrons stars, giving rise to mysterious "low-field magnetars." ...

Earth's magnetosphere, showing the northern and southern polar cusps (illustration). Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!

A novel spintronic device from Tohoku University allows electrical mutual switching between antiferromagnets and ferromagnets, boosting AI energy efficiency.