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Days without sunspots

Despite the sunspot activity being on the rise, the Sun had a few spotless days late July and early August. This is not unusual.

Triumph of the coronal dimmings

Several coronal dimmings were observed last week in solar EUV imagery. Some of the associated CMEs were thought to have a potentially earth-directed component.

High-latitude sunspot group

From 16 till 18 July, a sunspot was visible at the very high southern latitude of -43 degrees. Over the last 20 years, this was only the 2nd group to reach such high latitude.

On farside activity and proton fluxes

Some spectacular halo CMEs having their origin on the Sun's farside were associated with measurable increases in proton flux levels as recorded by near-earth satellites in the L1-point.

SWx acronyms

The STCE has created a new and dynamical webpage containing a list of currently nearly 1500 space weather acronyms.

First X-class flare of SC25

NOAA 2838 was the source of the first X-class flare of SC25. The X1.5 flare peaked at 14:29UT on 3 July.

The ESWC decides its new future organisation!!!

In the recent months, the European Space Weather and Space Climate Community (ESWC) started to work out a uniting organisation to help the community to sustain and develop the successful efforts made thus far.

The STCE in 2019

The STCE Annual Report 2019 is now available.

Where's the sunspot region?

Several active regions were visible in EUV at the Sun's east limb, but only one actually displayed sunspots while rounding the limb.

Solar Eclipse Challenge

swap solar eclipse contest image

The hidden message in PROBA2/SWAP solar eclipse image revealed. 

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