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

Solar flares are classified based on their strength and fall into five designated categories: A, B, C, M and X. An X-class solar flare is the most intense type of solar flare and can produce as ...

The sun has somewhat surprised forecasters today with a dramatic X-class solar flare from a newly emerging sunspot region.The ...

Astronomers used ALMA to observe Proxima Centauri and found frequent, intense flares that could destroy atmospheres of nearby ...

An unexpected X-class solar flare from a new sunspot region caused widespread radio blackouts across the Americas today ...

This occurs because the solar flare's intense X-rays and extreme ultraviolet radiation ionize Earth's upper atmosphere, specifically the ionosphere, which is situated between 30 miles (48 km ...

Only a few years ago, astronomers heralded the discovery of a rocky world circling the sun 's closest space neighbor, Proxima ...

As the sun reaches its solar maximum, a strong solar flare erupted on March 28, which may enhance the visibility of the ...

Even if the specific monthly peak of the cycle has passed, it doesn't mean solar activity is over. Strong solar activity ...

Auroras are possible over the U.S. tonight (March 25) as a "moderate" geomagnetic storm hits Earth. UPDATE: The Northern ...

Unlike the previous event, this latest eruption could have a greater impact on Earth ... the chances of an X-class flare — the most powerful category of solar flares — at 25% over the next ...