Aurora alert! The colossal solar storm could impact and trigger impressive northern lights.

A coronal mass ejection, or CME, is a massive cloud of solar plasma and magnetic field that can be hurled into space ...

A powerful X1.9 solar flare erupted on January 18, launching a fast coronal mass ejection toward Earth. Forecasters warn of ...

An X-class solar flare has produced an Earth-directed coronal mass ejection, increasing solar activity and raising the likelihood of geomagnetic impacts within 24 hours.

The Sun has just hurled a powerful X-class flare toward Earth, and the resulting geomagnetic storm could push shimmering auroras far beyond their usual polar haunts. As the current solar cycle ...

NASA explained that the flare was classified as an X1.9 flare. X-class flares are the most powerful type of solar flares. The number 1.9 shows how strong the flare was within this highest category.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A spot on the sun 10 times larger than Earth has been seen ...

The northern lights could be visible from a much larger portion of the northern United States than usual on Tuesday night and Wednesday morning, according to the National Oceanic and Atmospheric ...

Over the last 36 hours, the sun has released two more X-class solar flares, providing for more chances of the northern lights this week. On both Sunday morning and Monday morning, the sun released an ...