After last week's explosive X-flare, sunspot AR4046 is at it again! Could this latest eruption bring stormy space weather to Earth?

A study published in The Astrophysical Journal Letters reveals new insights into the triggering mechanisms of solar ...

The northern lights were visible farther south than normal Tuesday, April 15, and they'll be visible again for some residents ...

In recent months, South Africans have witnessed rare and spectacular displays of the Aurora Australis or Southern Lights.

A powerful geomagnetic storm aimed at Earth could disrupt technology and bring a stunning celestial show as far south as ...

A geomagnetic storm unleashed by the sun on Sunday could create colorful auroral displays over parts of the United States ...

Solar flares are classified on a scale of A, B, C, M, and X. Each class is 10 times more powerful than the last, with X-class flares being the most powerful and least frequent. Related: X-class solar ...

A strong solar storm is headed to Earth and this could cause colorful aurora displays in parts of the United States ...

Among the strongest flares was the X9.0 recorded on Octob... NASA's Parker Solar Probe is set for a record-breaking approach to the sun on December 24, travelling at 430,000 mph and reaching ...

The latest flare is an X1.1 flare – marking a rare and powerful kind of blast. X is the most powerful class of solar flare. The number following it represents the strength, however, and 1.1 is ...

But the sun has been stirring lately. The most powerful solar flare of 2013 erupted from Earth's closest star last week. Although it was only an M-class flare — which are considerably weaker ...