The northern lights could be visible across as many as 16 northern states in the U.S. on Sunday, Nov. 9, into Monday, Nov. 10, with a G2 geomagnetic storm being forecast by space weather experts at ...

A powerful solar flare erupted from the sun on November 14, 2025, causing radio blackouts across parts of Africa. This X4-class flare, the second-strongest of the year, originated from a highly active ...

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 ...

Earth is once again in the firing line. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. AR3664 is no ordinary sunspot. The behemoth dark patch on ...

The Sun has just unleashed an M5-class solar flare, a powerful burst of radiation that signals a clear uptick in solar activity as the current cycle heads toward its peak. While this event is not the ...

Considered our solar system's largest explosive events, solar flares can sometimes be as strong as a billion hydrogen bombs. Those with enough energy output to rank as an X-class have the potential to ...

The sun is not a static, tranquil sphere of gas, but an active, turbulent star with magnetic fields that twist and snap in powerful eruptions. Among the most striking and energetic of these eruptions ...

Like the number of sunspots, the occurrence of solar flares follows the approximately 11-year solar cycle. But as the current Solar Cycle 25 approaches its peak, how are the number of solar flares ...