auroras

Sun Unleashes Monster Blast—Biggest in a Year

The sun looks plenty angry, now that it’s at the peak of its 11-year solar cycle. A powerful solar blast uncorked late Monday was the biggest one in more than a year, report space-weather officials. Erupting from an already ...

Pictures: The Sun’s Recent Flares

The sun appears to be throwing a bit of a tantrum. With three powerful solar flares and a giant cloud of super-hot plasma hurled toward Earth in the past week, it looks as if our home star is awakening from ...