A powerful flare unleashed a severe solar storm that caused auroras and GPS disruptions on Earth.

Solar activity is likely to be on the decline all the way to 2030, which will mark the end of Solar Cycle 25.

According to the NOAA space weather forecasters, geomagnetic activity is ramping up just enough to make aurora viewing ...

Massive solar flares, graceful eruptions of solar material, and an enormous sunspot make up some of the imagery captured by NASA's Solar Dynamics Observatory in 2013 and 2014. A year ago this weekend, ...

Aurora alert! The colossal solar storm could impact and trigger impressive northern lights.

Research conducted by an international team of astronomers from Southwest Research Institute, Aryabhatta Research Institute ...

Add Yahoo as a preferred source to see more of our stories on Google. The sun has become more and more active over the last 16 years, in a turn that surprised scientists and could affect space weather ...

Has the Sun’s activity increased or decreased in the last few years? This is what a recent study published in The Astrophysical Journal Letters hopes to address as a team of scientists investigated ...

An X-class solar flare has produced an Earth-directed coronal mass ejection, increasing solar activity and raising the likelihood of geomagnetic impacts within 24 hours.

Colorful auroras could dazzle skywatchers again on Monday night amid a severe geomagnetic storm and what the National Oceanic ...

Cosmogenic radionuclides, such as 14C and 10Be, are produced in Earth’s atmosphere by interactions with cosmic rays and offer a unique window into past solar variability. Their deposition in natural ...