3 days of new active region 4149 rotating into view. A beta region with 5% chance of X-class and 20% chance of M-class flares, this is currently the most promising active region on the Earth facing side of the Sun.

“Superheated gold withstands 'entropy catastrophe': New method challenges established physics” Book will need a rewrite. First principles have changed. phys.org/news/2025-07-s…

Remember this? We dodged the biggest blasts from this one and *still* got a G5 storm.

The SWPC did not number this area, which started to emerge mid-day in the SH yesterday, in their daily Solar Region Summary report. It is a reversed polarity sunspot group. They happens more than most think, but I still like to keep track of when they show up. In regard to why.

Is Solar Cycle 25 dying? There has been some talk lately of whether Solar Cycle 25 is ending soon and we are already close to solar minimum. No. We are now 5 years and 7 months into the cycle. On average the cycle is 11 years long and the shortest was Solar Cycle 2, lasting

Lots of filaments on the Sun today. None facing us directly. I hear the big one in the S hemisphere is called the ☀️ Sara Housseal ☀️ filament :)

Solar Cycle 25 update: July 2025 finishes with a monthly sunspot number 125.6, up from 116.3 in June. July was a pretty quiet month overall. 5 M-class flares, no X-class flares. The biggest was an M2.4 limb flare on July 8th. We did get 6 G1 storms, but most were short with just

Large-scale coronal waves have been rare these days - I do not record any since 15 June 2025. Here is one from this morning, accompanying an M2.0 flare in AR 14168. It is not spectacular and not associated with a CME, but there may be more energetic ones in the coming days.

Eruption from Earth strike zone! We may get some impact on August 8. This was associated with an M4.4 flare in AR 14168, which seems to be still evolving. We see a more spectacular coronal wave than during yesterday's M2.0 flare. And major dimming (sidc.be/solardemon/dim…).

Impressive development of the new AR 4172! Nothing 24 hrs ago, rapidly developing now. Looks promising, we'll need to keep an eye on it as it develops and rotates into an increasingly Earth-directed position.

Good morning, AR 4172. The AR blasted a farewell C7.7 flare late yesterday. Good effort, almost M-class and not even fully on the limb yet!

Boom! Incoming AR 4188 on the E limb has just blasted a long-duration M1.1 flare.

A novel fine spectral structure of solar radio bursts with periodic beaded stripes observed by CBSm of CMP-II by Li et al. astro.gla.ac.uk/users/eduard/c…

We have just seen a gorgeous eruption over Sun's southeast limb.

WOW! What a CME! The massive filament eruption produced a spectacular CME! This is definitely one of the most impressive CMEs of this solar cycle so far. Imagine if this one was headed directly our way ... More on this event soon!

Another gorgeous eruption from the Sun's eastern limb.

Bright, full halo coronal mass ejection emerging on Thursday following a major farsided event, likely a strong solar flare. This is heading away from Earth. Imagery by LASCO C2 / GOES-19.

Today’s farside eruption produced one of the best halo CMEs of SC25. Absolutely stunning! #SpaceWeather

What an incredible last couple days of CME activity! The action really starts on August 20 with two prominence eruptions on the Sun's eastern limb, then there was a major farsided CME this morning on August 21. Hopefully, we see CMEs on the Earth-facing disk, next!

Boom! M-flare and CME happening now off the Sun's eastern limb! Looks like we have a productive active region about to rotate into Earth view. Who's ready?!