Monday, 11 September 2017 - 16:42 UTC
Yesterday's X8.2 (R3-strong) solar flare from sunspot region 2673 was one of the most spectacular solar flares we have ever seen. Not only was this the second strongest solar flare of the current solar cycle, it also launched an extremely fast and broad coronal mass ejection. What a way to say goodbye! Let's hope it survives its 2 week journey on the far side of the Sun!
Sunday, 10 September 2017 - 16:18 UTC
Sunspot region 2673 departs in style! The region is now behind the western limb but it still managed to produce it's fourth X-class solar flare: it erupted with an X8.28 (R3-strong) solar flare that peaked at 16:06 UTC.
Friday, 8 September 2017 - 03:37 UTC
The X9.3 coronal mass ejection has arrived at Earth and boy does it pack a punch! While the M5.5 coronal mass ejection turned out to be a huge dissapointment, the X9.3 coronal mass ejection is much stronger than expected and we are seeing some of the strongest geomagnetic storming of the current solar cycle.
Thursday, 7 September 2017 - 17:35 UTC
Solar activity is once again at high levels. Sunspot region 2673 continues to be very active as it rotates towards the west limb. Today (thus far!) it managed to produce a couple of M-class solar flares and an X-class solar flare.
Thursday, 7 September 2017 - 03:31 UTC
While we were catching some much needed sleep, the coronal mass ejection from Monday's M5.5 solar flare arrived at Earth. Our alert system detected the impact and send out a tweet and a push alert when the shock arrived at DSCOVR around 23:08 UTC.
Wednesday, 6 September 2017 - 21:09 UTC
The wait is over. We finally have a complete set of SOHO/LASCO coronagraph images from today's memorable X9.3 solar flare. If you missed today's space weather events be sure to read this news article before you continue reading here.
Wednesday, 6 September 2017 - 16:28 UTC
What a day! The strongest solar flare of solar cycle 24 erupted today at 12:02 UTC and of course it was sunspot region 2673 that took center stage. It was a memorable X9.33 solar flare (R3-strong radio blackout) which was highly eruptive as well. We have to go all the way back to 5 May 2015 to find the last time we had an X-class solar flare and it has been 12 years ago since we had a solar flare which was stronger than today's X9.3 event! Not bad considering we are already in the declining phase of solar cycle 24!
Tuesday, 5 September 2017 - 16:41 UTC
Sunspot region 2673 really delivered yesterday with multiple M-class events and a complex earth-directed eruption that is likely going to arrive tomorrow! Keep on reading to find out more!
Monday, 4 September 2017 - 16:35 UTC
It has been a long time since a sunspot region managed to get us really excited but earth-facing sunspot region 2673 has succeeded in doing just that. Be sure to keep on reading why you should be getting excited as well!
Friday, 1 September 2017 - 18:03 UTC
We admit! We have been ignoring sunspot region 2674 since it appeared on the solar disk a few days ago. It was a large sunspot region at the time with two massive sunspots. It however wasn't all that complicated and there wasn't much of a risk that it would produce a strong solar flare. That changed however during the past 12 hours or so. Keep on reading to find out what sparked our sudden interest in this sunspot region.
|Predicted Kp max||4|
|M-class solar flare||1%|
|X-class solar flare||1%|
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|Last geomagnetic storm:||2017/11/08||Kp6 (G2)|
|Number of spotless days in 2017:||81|
|Last spotless day:||2017/11/13|