There are about 175 flares of X1-class or higher per 11-year solar cycle, but only about eight flares stronger than X10-class ...

Solar flare classes follow a logarithmic scale, with each flare class — C, M and X — 10 times stronger than the previous one. Solar flares can also unleash giant clouds of plasma known as ...

and more powerful flares than X10-class are only seen eight times per cycle. This solar cycle's strongest flare so far was an ...

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 ...

Within each class, a numerical scale (e.g., X1, X2, X10, etc.) provides more detail about the flare's energy level. Following the eruption of an X-class solar flare, shortwave radio blackouts were ...

Northern Lights could be incoming midweek after the first powerful X-rated solar flare for many weeks. Satellites in Earth orbit detected an X2.2 class solar flare early on Dec. 8, 2024 ...

These superflares are similar to the solar flares we see emitted from our sun, except much more powerful, releasing thousands of times the energy of a typical solar flare. By comparison ...

Superflares are extremely strong solar flares – explosions with energies up to ten thousand times that of typical solar flares. Why worry? "A new study of 56,000 sun-like stars reveals that ...