The sun’s magnetic activity causes auroras, and the relationship between solar flares and auroras reveals an 11-year cycle; ...
"The changing brightness of these stars over time actually helped us 'see' these flares that are really far too small to observe directly." The visible light in these flares was thought to come ...
The view NASA shared shows the sun looking like a molten ball with a bright spot in the lower center where the X9 flare emerged. "The image shows subsets of extreme ultraviolet light that ...
Opinions expressed by Forbes Contributors are their own. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. New data from NASA’s Kepler space telescope is allowing astronomers ...