Sunspot AR3089 erupted with a series of m-class flares that culminated with an M7-class flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple wavelengths. Credit: Space.com | foo ...

NASA's Solar Dynamics Observatory captured the moon transit the sun. Sunspot AR3311 was active with m-class flares. Credit: Space.com | footage courtesy: NASA/SDP/Helio Viewer| edited by Steve Spaleta ...

The Northern Lights (aurora borealis) may be seen in 15 northern U.S. states this week, with a geomagnetic storm forecast for ...

The sun's corona—the outermost layer of its atmosphere, visible only during a total solar eclipse—has long intrigued ...

A powerful and worrying event is taking place on the surface of the Sun. A highly active region, known as Sunspot AR4087, is ...

NASA’s Solar Dynamics Observatory captured an X2.8-class solar flare and a pair of m-flares that preceded it in multiple ...

What was the 1859 Carrington Event? As a massive solar flare, this event disrupted global telegraph systems and caused ...

Sunspot AR3186 erupted with an X1-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks in multiple wavelengths. Credit: NASA/SDO/HelioViewer| edited by Space.com's Steve Spaleta ...

The sun has become very active in recent days, raising concerns among scientists and emergency teams. The sun is producing ...

During the emergency drill, the most serious situation imagined was a huge solar storm, a powerful explosion from the Sun ...

Forecasters said auroral activity could increase through the night, potentially pulling the phenomenon to more states.

The spate of difficulties comes days after the US National Oceanic and Atmospheric Administration (NOAA) issued a warning ...