NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare and X1 flare. See time ...

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.

X-class flares are the most powerful and least common, while the weakest are categorized as A-class. In between these categories are the B-, C- and M- classes in order of increasing strength.

X-class flares are the strongest class of solar flare, which are ranked on a 4-class scale. With each increase in class on the scale, the power of the flare also goes up ten times in strength.

The latest solar flare follows an M-class one, the second-highest on the scale, that occurred days earlier on June 15. It caused a shortwave radio blackout across North America, with a loss of signal ...

Solar flares are categorized into five classes based on their X-ray intensity, ranging between A, B, C, M, and X. X-class flares are the most powerful and least common, with only 175 X-class ...

A sunspot known as AR 3878 fired off the X-class flare at 5:20 p.m. EDT (2120 UTC) on Oct. 31, measuring in at X2.0. Sunspots are dark, planet-size areas on the sun where strong magnetic fields ...

Solar flares are categorized by strength into five classes. The smallest and weakest flares are A-class storms, followed by B-class, C-class, M-class and the most powerful, X-class.

It was an X-class flare — the most intense kind, NASA said. Solar flares are essentially "giant explosions on the sun" that send energy, light and high-speed particles into space, according to NASA.

A pair of powerful X-class flares from the Sun have caused radio blackouts this week. Huge X-class flares knocked out signals across Southeast Asia, Europe, and the Middle East, according to space ...

The level of solar flares are classified into 4 categories: B, C, M, and X (each letter represents a ten-fold increase in energy output.) Within each letter class, there is a scale from 1 to 9.

It marks the second X-class flare since Thursday when an X3.3 flare happened from another region of the Sun. On Sunday, the SWPC issued a Geomagnetic Storm Watch after satellites detected coronal ...