The STCE does Fundamental Research.
The magnetic cloud (CME) associated with yesterday's X1 flare has already arrived. A severe geomagnetic storm is in progress. Spectacular aurora have been observed over Belgium.
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NOAA 4341 produced a long-duration X1.9 flare during the late afternoon of 18 January. The associated coronal mass ejection is expected to impact the Earth's magnetic field on 20 January, possibly resulting in a major geomagnetic storm. Currently, a proton event is in progress.
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Something not seen very often: a bipolar sunspot region with both main portions having the same magnetic polarity.
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The first Proba-3 ASPIICS Guest Investigator call is now open, with a submission deadline of 12 February 2026. The GI programme offers access to Proba-3 ASPIICS data and the unique chance to participate in instrument commanding.
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Sunspot activity was quite variable during December 2025, with some large and complex sunspot regions at the beginning and end of the month.
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