There were significantly more X-class solar flares in 2024 than any other year for at least three decades. The arrival of ...

A Sunspot AR3873 erupted with an X1.8-class solar flare. NASA's Solar Dynamics Observatory captured the fireworks. Footage ...

The sun is not quite done with 2024. Early Sunday (Dec. 29), the sun fired off a class X1.1 solar flare, one of the most ...

On January 3, the Sun unleashed a powerful X1.2 solar flare, the first one in 2025, causing radio blackouts in parts of South ...

Scientists divide solar flares into five classes, according to their peak brightness in X-ray wavelengths. In order from smallest / least intense to most intense and troublesome: A-class flares ...

The sun released over 50 X-class solar flares in 2024! Here we take a look at some of the best. It's been a busy year on the sun, as it officially entered the peak of its roughly 11-year cycle of ...

For decades, scientists have tried in vain to accurately predict solar flares—intense bursts of light on the sun that can ...

A powerful X1.8 solar flare erupted on January 4, 2025, and was recorded at its peak—7:48 a.m. ET—by NOAA’s Solar Ultraviolet ...

The sun recently hurled two coronal mass ejections toward Earth. The first is expected to reach us on Tuesday sparking aurora ...

EST (0315 GMT on Dec. 26). Solar flares are ranked and categorized by their power on a 4-level classification scale, with M-class the second strongest to the beastly X-class at the top.

The sun's most active phase, solar maximum, kicked off in 2024, allowing an unusually high number of powerful X-class flares to explode from our home star. | Credit: NASA/SDO/AIA/LMSAL The number ...