news
Submitted on 2026-04-24
SIDC Sunspot Group 825 (NOAA Active Region 4419) was the source of 2 X-class flares produced on 24 April. The analysis of the associated CMEs is ongoing.
Submitted on 2026-04-22
GONG, the Global Oscillation Network Group, is celebrating its 30 years of providing high-quality helioseismic and magnetic data for the benefit of solar physics and space weather research.
Submitted on 2026-04-14
The Belgian-led ASPIICS coronagraph aboard ESA’s Proba-3 mission reveals a dynamic birthplace of the solar wind. Observations made by the ASPIICS coronagraph reveal a world of small-scale activity in the Sun’s inner corona, according to a new study led by the Royal Observatory of Belgium.
Submitted on 2026-04-09
An interesting paper has been published end 2025: 'An independent assessment of the International Sunspot Number since 1996'.
Submitted on 2026-04-07
Two earth-directed coronal mass ejections surprised space weather forecasters with their arrival time and geomagnetic impact. The first one passed almost unnoticeable, the second one eventually resulted in a strong geomagnetic storm.
Submitted on 2026-04-03
Ever wondered what exactly we do at the STCE?
Yana, Hervé, Marie, Mark and Tobias are here to tell you.
Submitted on 2026-03-30
NOAA 4405 produced an X-class flare early on 30 March. The associated CME arrived around noon on 1 April. There's no chance on aurora over Belgium tonight. ***(UPDATED 2)***
Submitted on 2026-03-26
In March 2006, 20 years ago, the Minister of Science Policy announced the foundation of the Solar-Terrestrial Centre of Excellence (STCE), a knowledge centre for space weather. Twenty years later, the STCE is an international reference for space weather.
Submitted on 2026-03-19
The spacecraft has phoned home, re-establishing the lost connection.
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