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SWx medals

Call for nominations: international space weather and space climate medals 2021

Quo Vadis discussion forum

Following up on its 17 March 2021 kick-off meeting, the Quo Vadis ESWC interim board now invites you to its discussion forum.

Kees de Jager 100!

EUI 174, not filtered and filtered - EUI 304, not filtered and filtered

Kees, we wish you a Happy Birthday at the speed of light, 100 % supported by Solar Orbiter and EUI. You witnessed 9 solar cycles, passing smoothly to your 10th.

We loved your participation in 'De Kennis van nu' and your enthusiasm and support for Solar Orbiter. 

M1 flare!

NOAA 2816 produced an M1 flare on 19 April. The associated CME was not earth-directed. This is only the 3rd M-class event of the new solar cycle.

Rise of the CMEs!

A substantial coronal mass ejection (CME) observed on 17 April had no earth-directed component, its source being on the farside of the Sun. The overall number of detected CMEs has been gradually increasing since December 2019.

Butterfly's wings

The latitude of the SC25 sunspot groups indicates a normal unfolding of the butterfly pattern.

SOHO catches 3 new comets

The coronagraphs on board the SOHO spacecraft have discovered again a number of (small) comets. The Sun remained unharmed.

The Sun's farside joins the party!

Some dynamic and impressive prominence activity took place on the Sun's farside during 26-27 March. The associated CME was a lot less spectacular.

13-14 March: two geomagnetic storms compared

Last weekend, on 13 and 14 March, a minor geomagnetic storm took place. 32 years ago, on exactly the same days, geomagnetic activity was quite different...

A sunspot activity nest

NOAA 2806 emerged on 28 February, became spotless on 5 March, then re-emerged a day later.

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