The STCE does Fundamental Research.
NOAA 14366 has become the most flare-productive group of the ongoing solar cycle. In fact, it's already on the third place of groups producing the most M- and X-class flares since the start of the GOES measurements half a century ago!
view
On 19 January 2026, one of the strongest solar radiation storms of the last few decades took place. However, though the storm contained a large number of low-energy protons, the number of high-energy protons remained mostly at background levels. A few aspects of this event are discussed, and a crude reference is provided.
view
The magnetic cloud ("CME") associated with the strong flare late on 1 February produced by sunspot group 4366, arrived yesterday 4 February. It resulted in a -still ongoing- minor geomagnetic storm. For Belgium, this means no aurora are visible. Meanwhile, NOAA 4366 produced another strong X-class flare on 4 February. (***UPDATED 6***)
view
A concise analysis of the spectacular aurora that were observed during the 19-20 January geomagnetic storm.
view
Proba-3/ASPIICS captured three prominence eruptions in five hours during an active period on 21 September 2025.
view