Lovely loops
On 21 August, a moderate solar flare near the Sun's west limb was associated with impressive post-eruption coronal loops.
Double eclipse for Proba-3
By now, you must have seen the amazing images of the total eclipse that occurred last week. However, did you know this total eclipse was also seen from space?
When a total eclipse occurs on Earth, solar imagers in space usually only observe a partial eclipse, due to a different alignment between the Sun, the Moon and the spacecraft. However, on August 12, the ASPIICS coronagraph onboard Proba-3 was in just the right place at the right time!
Game of the Goose... for Satellites!
The "Game of the Goose... for Satellites!" is a special, educational version of the classic "Game of the Goose" illustrating the various space weather impacts on satellites.It integrates the effects of solar flares, solar energetic particles and geomagnetic disturbances.
2nd ICAO Space Weather User Workshop
On 8-9 June 2026, ICAO -the International Civil Aviation Organization- organised a 2nd Space Weather User Workshop on the provision and use of space weather information for international civil air navigation. Once again, the team at STCE contributed significantly to the workshop preparations and realization.
A captivating filament eruption
A solar filament erupted late on 7 July. The associated coronal mass ejection did not affect the earth environment.
Large and larger
Two large sunspot groups, NOAA 4478 and NOAA 4479, have been dominating the sunspot and flare activity during the previous week.
A new kid in the X-class town
While NOAA 4479 is approaching the Sun's west limb merrily producing M-class flares, a new active region NOAA 4482 has rounded the Sun's southeast limb producing an X1.3 flare.
NOAA 4479 produces an X-class flare
After several days of development, NOAA 4479 finally produced an X1 flare late on 30 June.
Solar Radio Bursts
Solar Radio Bursts may significantly affect various technologies such as radars and GNSS applications. The STCE's SC25 Tracking page has now been supplemented with graphs of strong bursts (more than 5000 sfu) at 8 different frequencies for the period 1996-2025.
Look who's back!...
A dynamic nest of sunspot regions returned on 19 June and produced several M-class flares.