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M6.7 coronal mass ejection
Today at 00:29 UTC we saw a surprise M6.7 solar flare from sunspot region 2529. It was an eruptive event and a coronal mass ejection was launched into space. Be sure to read the news article that we released earlier today for more information.
M6.7 solar flare
After almost silently transiting the Earth-facing solar disk it didn't look like sunspot region 2529 had the capacity to let loose a strong solar flare. Today at 00:29 UTC it showed that it was a deceiving silence as it found the energy to produce the strongest solar flare of 2016 thus far: M6.72.
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/12 | M1.1 |
| Last geomagnetic storm | 2025/12/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 125.7 +33.9 |
| Last 30 days | 109.3 +18.1 |