Earth just experienced a rare S4 solar radiation storm, the most intense since 2003 — powerful for satellites and astronauts, ...

NOAA's Space Weather Prediction Center classified the storm as S4 (severe).

The northern lights may not have been as bright as you expected, but Earth's atmosphere was still highly active.

Multiple M-class and X-class solar flares erupted within 24 hours as an active sunspot released intense radiation affecting ...

Radiation levels at airline flight altitudes briefly reached levels that could be potentially harmful to pregnant women. When you purchase through links on our site, we may earn an affiliate ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Thermal image of an eruption or flare on the surface of the ...

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.

Scientists from the University of St Andrews have discovered that ions in solar flares can reach scorching temperatures more than 60 million degrees—6.5 times hotter than previously believed. This ...

NEW YORK — Space weather forecasters issued an alert on Tuesday for incoming severe solar storms that could produce colorful northern lights and temporarily disrupt communications. In the past few ...

Powerful solar activity released by the sun reached Earth Monday, causing colorful auroral displays and GPS issues for aircraft, according to the National Weather Service’s Space Weather Prediction ...

(NEXSTAR) – Earth was slammed with the strongest solar radiation in more than two decades on Monday, sparking northern lights and some technology issues. $500K of property stolen from Orange Beach ...