A huge sun eruption combines with speedy solar wind from a "coronal hole" for a weekend aurora show, experts predict.

Sunspot 3912 erupted with an X2-class solar flare.NOAA's GOES-R satellite captures footage of the blast in multiple ...

The active regions of the Sun are the site of powerful radiation emissions, called flares, which are among the most energetic phenomena in our solar system. A subcategory stands out because a ...