Naked eye sunspots

Over the last 2 weeks, some sizeable sunspot groups were visible with the (protected) naked eye.

An abundancy of M-class flares

Sunspot region NOAA 3311 rounded the Sun's northeast limb on 18 May and has since been a prolific M-class flare producer.

ESA Academy visits the STCE

On May 8, the STCE team was invited to teach at ESA's Academy in Transinne (BE) in a pilot for their new Space Weather Training Course. 
30 students were selected for a week-long, in-depth school about space weather and its technological impacts. The STCE was responsible for giving the students a first introduction on how to forecast space weather events and impacts.

It's raining... CMEs!

The average daily number of coronal mass ejections (CMEs) was at high levels during the first 2 weeks of May.

Radio Sun!

A trio of sunspot groups in the northeast solar quadrant were responsible for an important portion of the solar flares produced early May. Some of these flares were accompanied by strong emissions at radio frequencies.

Open Topical Issues in JSWSC

The Journal of Space Weather and Space Climate (JSWSC) currently has 3 Topical Issues (TIs) open for submission.

The power of delta

Active region NOAA 3288 developed a delta magnetic configuration that resulted in increased flaring activity, culminating in a M7.1 flare on 1 May.

EUI can observe both elephants and mice among solar eruptions

Signatures and thermal structuring of null-point reconnection. Figure from

Close encounters of the aurora kind

A severe geomagnetic storm was recorded on 23 and 24 April. Aurora were photographed from Texas and southern Spain.

Space storm alarm

The world map for HF com coloured red.
Solar wind data at L1

Fast news - fast news

On April 23, 17:00 Universal Time, a magnetic cloud coming from the sun reached the earth. The STCE alert system started ringing the entire night and longer. 
For our PECASUS services for civil aviation, scientists and operators  in Belgium and Finland were continuously in contact to give a correct interpretation of the data which was coming in. 

An estimate of arrival



Travel Info





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