This article originally published at Spooky Sun 'smile' hides a powerful surprise for Earth.

NASA’s Solar Dynamics Observatory photographed a face-like pattern on the Sun, creating a perfectly timed Halloween image.

The image was taken by GOES-19, the newest in the Geostationary Operational Environmental Satellite series operated by NOAA.

Moroccan rocks reveal that Earth’s magnetic field once changed fast but followed a hidden order, helping scientists map ...

More than a decade of satellite monitoring has mapped Earth’s magnetic field as it subtly altered between 2014 and 2025 — and what scientists have learned is remarkable. The South Atlantic Anomaly, a ...

The northern lights could make a surprise appearance across parts of the U.S. on the evening of Thursday, Oct. 30. Here's how ...

Geophysicists have modeled how Earth’s magnetic field could form even when its core was fully liquid. By removing the effects of viscosity in their simulation, they revealed a self-sustaining dynamo ...

In a major leap forward, scientists, using the Event Horizon Telescope (EHT), have captured the sharpest images yet of distant galactic centers. Using light at a frequency of 345 GHz, they’ve peered ...

Earth’s magnetic field is a dynamic system generated by turbulent motions in the liquid outer core. These convective processes, modulated by Earth's rotation, arise from complex interactions between ...

A new analysis of computer simulations of Earth’s magnetic field suggests that its behavior was different early in Earth’s history, resulting in greater stability and fewer reversals of the magnetic ...