NOAA’s Space Weather Prediction Center has issued a geomagnetic storm watch for October 16 as several coronal mass ejections ...

A erupted with M1 and M6 class solar flares. Watch the fireworks in these views from NASA's Solar Dynamics Observatory.

A strong solar flare-up could bring auroras to the far north, and might even be visible in some U.S. states on Thursday.

NASA Solar Dynamics Observatory captured a M7.9-class solar flare. See footage of the blast in multiple wavelengths. Credit: ...

An M3-class solar flare that lasted about 3 hours created a massive coronal mass ejection. The Solar Dynamics Observatory ...

The weather is muggy, the fog is low. Those stockings that have been defrosting in your drawer finally break free once that first autumn leaf falls. As fall approaches, you might just want a playlist ...

There are many things with spots: Dalmatians, leopards, ladybugs, overripe bananas, and guys with bald spots are all great examples. Another thing with spots is the Sun! That's right! The Sun, as it ...

Scientists from the University of St Andrews have discovered that ions in solar flares can reach scorching temperatures more than 60 million degrees—6.5 times hotter than previously believed. This ...

The new finding may solve an "astrophysics mystery that has stood for nearly half a century." Our sun's fiery flares are even more extreme than scientists had thought, blasting particles to ...

Solar flares are intense bursts of light and particles from the sun. And while they can pose hazards for things like satellites, they are also beautiful, dramatic and incredibly hot. NPR's Nell ...