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Strongest solar flare of SC25

Following the X7 flare late on 1 October, NOAA 3842 produced an X9.0 flare on 3 October. This is the strongest flare so far this solar cycle (SC25) ***UPDATED (4)***

Top 10 lists

The Top 10 of strongest solar flares, proton events, and geomagnetic storms so far during the current solar cycle (SC25).

Solar Cycle 25 maximum

Is the maximum of Solar Cycle 25 happening right now? When is the next solar maximum? Is it already happening?

Some stunning solar eruptions

A compilation of some amazing solar eruptions that have been observed during the first half of September.

A new kid on the X-class block

NOAA 3825 produced its 2nd X-class flare in as many days. The X4.5 flare peaked on 14 September at 15:29UTC. ***UPDATED (1)***

80 years ago, our solar observers marked the liberation of Brussels

80 years ago, the Allies liberated Brussels, and this event did not go unnoticed by our solar observers.

Call for Guest Investigators

Once more, the solar physics team of the Royal Observatory of Belgium invites external researchers to join in the data exploitation of its space telescopes on the PROBA2 microsatellite (SWAP, LYRA) and on Solar Orbiter (EUI).

First solar observations with SPADE

The SPADE array installed in Humain
First observation of SPADE
CALLISTO spectrum
SPADE observes Type IIIs
SPADE observes stria bursts

In the past couple of weeks, the radio-astronomy team has worked relentlessly on a new setup and calibration procedure for the SPADE instrument.

PITHIA-NRF Trans-National Access Open Call

PITHIA-NRF launches its seventh call. Apply and come visit the STCE!

NOAA 3784 joins the club!

NOAA 3784 joined the club of X-class flare producing regions by unleashing an X1.1 on 14 August.

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