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

First eclipse of the year observed by PROBA2

In the early hours of April 20 a solar eclipse took place. Regions on Earth that saw, at least, a partial eclipse include parts of South/East Asia, Australia, and Antarctica. This meant that only a very small fraction of the world's population was able to witness this event. Even if it was a difficult eclipse to observe from the ground, PROBA2 had a front-row seat! 

JUICE en route to Jupiter!

On 14 April, ESA's Jupiter Icy Moons Explorer (JUICE) was launched on an 8 years journey to Jupiter to study the giant gas planet and its three large ocean-bearing moons.

Ionospheric storm!

Following the severe geomagnetic storm of 23-24 March 2023, the positive annd negative phases of the associated ionospheric storm as well as the related space weather effects were clearly observed.



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