The thrill of endurance racing returns to Florida this weekend at the 73rd running of the Mobil 1 Twelve Hours of Sebring.

The hyperactive sunspot region responsible for May's incredible auroras has done it again, firing off not one but two X-class solar flares in less than 12 hours. The first X-class solar flare peaked ...

The two flares originated from the historic sunspot responsible for May's stunning auroras. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The ...