It takes two to Tango!

Some interesting prominences appeared around 27-29 January, with one particularly dynamic as it rotated over the Sun's northwestern limb.

The last C-class flare

The last C-class flare dates already back from 5 October 2017.

A sunspot oddity

A sunspot group has appeared at a high latitude, suggesting it belongs to the upcoming new solar cycle. However, at the same time it has the magnetic configuration of the currently ongoing solar cycle.

Two Topical Issues for the SWSC Journal

The SWSC Journal has opened a Topical Issue on "Planetary Space Weather" and another on "System Science: Application to Space Weather Analysis, Modelling, and Forecasting".

A new reference solar spectrum

BIRA-IASB announced a new reference solar spectrum based on SOLAR/SOLSPEC observations on board the International Space Station.


A long filament was visible on the Sun last week. It appears to be the remnant of active region NOAA 2673, source of the strongest solar flares so far this solar cycle.

Something's brewing...

Two strong coronal mass ejections emanated from behind the Sun's east limb on 18 October and may herald more active solar conditions in the days ahead.

The best of... 2016!

A compilation of the most memorable space weather moments of 2016 can be found underneath. A ***MOVIE*** was created containing one or more clips of each event.

The Sun is spotless again!

After two months of increased solar activity, the Sun has turned spotless again on 8 October.

A new LYRA product

The PROBA2 team is happy to announce the release of a new data product: the O+N2 Earth atmosphere number densities derived from PROBA2/LYRA occultation data.



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