Strong geomagnetic storms

So far, ongoing solar cycle 25 (SC25) has been geomagnetically more active than its predecessor SC24, but remains overall well below the long-term average of SC17 to 23.

Filament eruptions and polar lights

A trio of earth-directed CMEs resulted in a major geomagnetic storm.

Plunging sunspot numbers... or not?

The daily sunspot number continued its sharp decline this week. Ups and downs during a solar cycle maximum are not unusual.

SC25 update

The STCE's SC25 Tracking page has been updated to reflect the latest evolution in some critical space weather parameters for the ongoing solar cycle 25 (SC25).

The Locarno digitization project

The Locarno station just completed a 5 year digitization project archiving sunspot observations and data from 1 June 1957 onwards.

Christine Verbeke makes it to the final round of the Flemish PHD Cup 2023

You can help her win the prize of the public by casting your vote.



If the words Plasmasphere Ionosphere Thermosphere, ring a bell, this might interest you.

Become Associate Editor for JSWSC!

The Journal for Space Weather and Space Climate (JSWSC) is seeking new Associate Editors with expertise in the physics of the ionosphere-plasmasphere-magnetosphere system, GNSS based research and applications, and machine learning.

Delta does it!...

Active region NOAA 3435 developed a magnetic delta and produced several M-class flares. An associated CME had an earth-directed component which was the cause of a moderate geomagnetic storm.

Filament eruption

An impressive filament eruption took place on 16 September. The associated coronal mass ejection was earth-directed and created a geomagnetic storm starting already 2 days later.



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