Northern lights occur when a solar flare interacts with Earth's atmosphere.
A rapidly growing sunspot has fired off at least 18 M-class and three X-class flares in just 24 hours, including an intense X8.3 eruption.
A powerful X1.9 solar flare erupted on January 18, launching a fast coronal mass ejection toward Earth. Forecasters warn of ...
Three solar flares are barreling toward Earth and they could create a northern lights show to be remembered Tuesday night. These coronal mass ejections, or CMEs, blew off the surface of the sun Nov. 9 ...
The Sun looks like a warm yellow sphere with a surface covered with glowing messy hair. The yellow glow extends to the edges of the image, with some regions brighter than others. Many bright yellow ...