Trouble near the southwest limb

A number of eruptions occurred on 29-30 March and 1 April near the southwest solar limb.

Severe geomagnetic storm!

A severe geomagnetic storm was recorded on 23-24 March.

Unexpected X-class flare

An X1.2 flare erupted from active region NOAA 3256 early on 29 March.

Rush to the Poles

Solar prominences are migrating towards the solar poles, heralding the reversal of the polar magnetic fields within 1 or 2 years.

Powerful farside eruption

Early on 13 March, a strong eruption occurred on the Sun's farside.

The STCE in 2021

The STCE Annual Report 2021 is now available online.

STCE's Number Puzzle

Some number crunching to highlight solar activity, projects and ongoing missions so far in SC25.

A new month, a new X-class flare!

A sunspot region near the northwest solar limb produced a new X-class flare on 3 March. The bulk of the associated CME is not earth-directed.

One active region, 2 M-class flares

Decaying active region NOAA 13229 produced 2 M-class flares. The associated CMEs had earth-directed components and caused a strong geomagnetic storm 2 days later.

More on the X2 flare

Some more clips of the X2 flare of 17 February 2023.



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