X-class flares are back!

A side-by-side comparison of and more details on the X-class flares from 6 and 9 January.

X1.9 flare from NOAA 3184

Compact and complex sunspot group NOAA 3184 produced a X1.9 flare on 9 January.

X-class flare from NOAA 3182

NOAA 3182 produced an X-class flare early on 6 January. Space weather effects are limited.

Monthly sunspot number exceeds 100!

Exactly 3 years after the start of the new solar cycle, the monthly sunspot number has exceeded 100 for the first time.

The coronal hole that wasn't

What looked like a weak coronal hole structure in EUV imagery turned out to be a filament channel.

The PROBA2 Science Center launches its 10th Guest Investigator call

The PROBA2 PI-team welcomes research proposals for the tenth round of its Guest Investigator program for research based on SWAP and LYRA data analysis by scientists outside the SWAP and LYRA PI-teams.

The story behind 3 solar flares

Last week's solar flare activity was characterized by a number of interesting events.

GNSS (a bit) in trouble

A transient in the solar wind impacted the earth environment on 7 November. Though it resulted only in a brief minor geomagnetic storm, its effects were clearly felt in some GNSS technologies, especially over Canada and Scandinavia.

Topical Issue on "Solar Sources of Space Weather" for JSWSC

JSWSC has opened a new Topical Issue "Solar Sources of Space Weather".

Topical Issue on "CMEs, ICMEs, and SEPs" for JSWSC

JSWSC has opened a new Topical Issue "CMEs, ICMEs, SEPs: Observational, Modelling, and Forecasting Advances".



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