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Another X-class flare, another source region. NOAA 3883 produced a X2.3 flare on 6 November.

ESWW 2024, a prominence eruption, first images of CCOR, and PROBA2's 15th anniversary.

Another X-class flare, and once again from a different region. NOAA 3878 was the source of an X2.0 flare on 31 October.

The solar storms of 24 and 26 October are compared from the initial X-class flare to the geomagnetic disturbance that resulted from the associated coronal mass ejection.

Another X-class flare, but from a different region. The associated coronal mass ejection may deliver a glancing blow on 28 October.

The Sun produced a strong X3.3 flare on 24 October. The associated coronal mass ejection, expected to deliver a glancing blow, actually arrived on 26 October at 15:35UTC (DSCOVR). A minor geomagnetic storm is expected. ***UPDATED (2)***

The STCE's SC25 Tracking page has been updated to reflect the latest evolution of some critical space weather parameters for the ongoing solar cycle 25 (SC25).

The impact of the severe geomagnetic storm of 10-11 October was felt in various domains.

On October 3, the Sun unleashed its most powerful eruption since 2017: a solar flare classified as X9.0 on the GOES scale, accompanied by a significant coronal mass ejection. We also observed a signal related to this flare in the Herzberg channel which is extremely rare.

NOAA 3848 produced a long duration X1 flare early on 9 October. The associated coronal mass ejection (CME) has arrived around 14:45UTC. The severe geomagnetic storm is nearing its end. ***UPDATED (5)***