A NOAA forecast suggest that Northern Lights may be visible in northern U.S. states as solar wind conditions intensify.

The northern lights could make a surprise appearance across parts of the U.S. tonight, Dec. 22, and through Dec. 24, as a ...

A coronal mass ejection from the Sun is expected to arrive by midday, potentially causing “strong” geomagnetic storms and impacting the aurora.

A strong geomagnetic storm may hit Earth on Monday night after the sun released a powerful M8.1 solar flare on Saturday. The NOAA Space Weather Prediction Center issued a geomagnetic storm watch, ...

Fast solar wind and a possible glancing blow from a coronal mass ejection could spark auroras over Christmas. Stargazers may ...

A NOAA forecast suggest that Northern Lights may be visible in northern U.S. states as solar wind conditions intensify.

NOAA is predicting northern lights from Washington, to Michigan, to New York and Maine Tuesday. Here's what time to look up.

A coronal mass ejection -- a massive burst of solar material and magnetic field from the sun's outer atmosphere -- is expected to arrive at Earth early to midday Tuesday, according to NOAA. The CME, ...

A strong geomagnetic storm caused by the sun could impact Earth later this week, space weather forecasters say. The National Oceanic and Atmospheric Administration’s Space Weather Prediction Center on ...

A solar cycle is a roughly 11-year periodic change in the Sun characterized by variations in the number and intensity of sunspots, as well as a flipping of its magnetic poles.

A powerful M8.1 solar flare sent a full-halo coronal mass ejection toward Earth, and scientists expect it to trigger strong G3 geomagnetic storm levels on Tuesday. Forecasts show the Kp index rising ...

An "extreme" G5 geomagnetic storm reached Earth on Friday, NOAA's Space Weather Prediction Center said, after issuing a watch earlier in the day warning of the potential for a severe impact. The watch ...