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A fascinating paper - extra interesting for someone looking in from history POV is how many of early readings are from colonial/military sources. I also know many archaeologists in last few months will have been looking at the skies wondering what folks thought way back when...

The aurora on May 11, 2024, was the third most extensive aurora seen on record. It was seen down to Ad Dakhiliyah, Oman, which sits at a geomagnetic latitude of 18.08° N. This would also mean this was the most extensive aurora on record since February 1872.

@eelcodoornbos Yeah, comparing the ground-based aurora sightings with the combined vis/IR auroral obs from space suggests the aurora was observed a very long way from overhead:

Sorry to announce that after another European Research Council (ERC) "so-very-close-but-no" funding outcome, I'm quitting space physics to fully devote myself to my role as unofficial geo-cafe taste tester. Strong recommend for the new bean pastry. I'll be fat, poor and happy.

NRL's Compact Coronagraph (CCOR) has successfully collected its first images of CMEs. CMEs are powerful bursts of plasma that can disrupt Earth's magnetic field, leading to disruptions on earth. CCOR can observe and provide real-time data that will help scientists! #NRL #NOAA

Really proud of this work (my first time being fully responsible), where I show how the repeated emergence of solar active regions near one another can significantly inhibit the evolution of the coronal magnetic field. (1/3) Check it out here: arxiv.org/abs/2410.18244

I'd love to hear from anyone that actually does geometric (cone) model fitting to coronagraph observations about why the forecasts have estimated this halo CME to be non-Earth directed (or at best a very glancing blow)? It seems to clearly have an Earth-directed component to me.

I'd somehow introduced a really intermittent and hard-to-pin-down bug into our HUXt solar wind model. It's taken 300,000 model runs to track it down and squash it. Fortunately, that's only a couple of hours computation. I don't know how people with "real" models cope!

Wow! Double trouble! ☀️🌬️ HUXt successfully modeled the impact of this morning's X3.3 CME and is forecasting the X1.8 CME to arrive 10-28 8:00 UT. Confidence is only ~50%, though, and uncertainties are relatively high (-6/+10 hr). Learn about HUXt here: theauroraguy.com/blogs/blog/aur…

I wholeheartedly agree. Cutting U.K. R&D funding in today’s highly competitive and indeed dangerous world would be nothing short of idiotic.

From CME arrival past predicted time to major geomagnetic storms, space weather forecasts can be both exciting and frustrating for aurora chasers. Join Space Weather Unplugged on Tuesday, November 19th, to learn about space weather forecasting forecasting with @mathewjowens.bsky.social

New paper out on time-dependent solar wind modelling, and why it's definitely the way to go. nature.com/articles/s4159… Head over here for a summary of the key points: bsky.app/profile/mathew…