Validating a Non-conventional Method for Expansion of Coronal Mass Ejections (CMEs) and Investigating the Evolution of a CME Substructures Using Solar Orbiter and Wind Observations
https://arxiv.org/pdf/2604.08842
Anjali Agarwal, Wageesh Mishra, Mathew J. Owens, Tanja Amerstorfer.
Thank you, Craig 😊
🚀 Excited to share that after my time as Associate Editor, I've been promoted to Editor at AGU Space Weather.
I'm really grateful for the opportunity to support space weather research and work with authors, reviewers, and the editorial team to help advance the community. ☀️
#AGU #spaceweather
#Aurora over the #Alps 💃🏻💜💚
I saw her dancing for the first time of my life 🥹
Location: 46°N Koralpe, Carinthia/Austria.
@aswogeosphere.bsky.social @chrisoutofspace.bsky.social @vincentledvina.bsky.social @uwz.bsky.social @nikzimmer87.bsky.social @manueloberhuber.bsky.social @alpenwetter.bsky.social
Merry Xmas to all of you ☀️🎄
We have a PhD opportunity at the University of Reading focused on analysing Jupiter and Saturn auroral observations!
Title: Investigating Earth-like responses to the Solar Wind in Gas Giant Upper Atmospheres
Supervisor: me!
Full description/application portal:
www.findaphd.com/phds/project...
Hannah T. Rüdisser @hannahruedisser.bsky.social represented the Austrian Space Weather Office and GeoSphere Austria at the Exner medal lecture for Sepp Hochreiter @hochreitersepp.bsky.social in Vienna yesterday, talking about the usage of AI in #spaceweather!
Here is todays Nov 14 #solarstorm (NOT Earth directed 🙃) in its full glory - it has one super interesting feature concerning future #spaceweather missions!
Guess which 🤔
First the solar source as imaged in extreme ultraviolet by NASA/SDO:
A shock arrived Nov 12 7:32 UT at Solar Orbiter, from the early Tue Nov 11 X5 flare #solarstorm. Reminder: SolO is at 17.5° east, 10.3° north of Earth, 0.83 au, so our forecast should be taken with a grain of salt as its quite a bit away from the Sun Earth-line - it will not fully match L1 data.
The #northernlights were also seen at the Sonnblick Observatory from the GeoSphere Austria early on Nov 12 2025!
credits: Herman Scheer / foto-webcam.eu
Resulting in a massive maximum total magnetic field of 63 nT, presumably the #solarstorm from Monday morning arrived 2025 Nov 11 23:38 at L1, and interacted with the previous storm just before it arrived at the L1 point near Earth. Dst reached - 238 nT, which is the 3rd strongest storm of this cycle
We are waiting for the arrival of both #solarstorms at the @esa.int #SolarOrbiter spacecraft. Its magnetometer could measure their internal magnetic field which can improve our forecasts. It is a bit away from the Sun-Earth line at 10° north / 18° west but at a good distance of 0.83 au from the ☀️
👇
The source region of both #solarstorms, one from early Sunday Nov 9, and the other from early Monday Nov 10, are (as usual) complex. Judging from the main neutral line, where the +/white, and -/black magnetic fields meet, we may expect a magnetic field rotation as south-east-north (SEN) or ENW.
Three plots, stacked vertically, showing measured quantities related to the solar wind at L1. The top panel shows the magnetic field, with separate colors indicating the differend field components, the middle panel shows the solar wind speed, and the bottom panel shows the density.
#solarstorm update 💥 - the CME predicted to arrive early Friday, November 7th seems to have impacted L1 around 04:51 UTC today - speed around 793 km/s, Bz initially northward with strength around 13 nT and currently at -7 nT
Congratulations, Hannah!!! 🤩
@hannahruedisser.bsky.social
https://punch.space.swri.edu/punch_science_getdata.php
We just rolled out v0h of the PUNCH data pipeline. Most of Aug and Sep are now up. By Sunday we should have reprocessed it all. The L2 data include 4-min-cadence images of 3I/Atlas for those who wish to verify it is not an alien spaceship doing maneuvers. 🧪🚀🛰️🔭☀️
punch.space.swri.edu/punch_scienc...
Some impressions from day one at #ESWW2025 including first poster presentations and big congrats to long-time collaborator Erika Palmerio @erikapal.bsky.social for receiving the Alexander Chizhevsky Medal for early career scientists!
👏 to our Satabdwa Majumdar @satabdwa.bsky.social who had an invited talk about solar wind modeling at a conference in India!
There are a few rather minor #solarstorms traveling to the west of Earth at the moment, and we expect only minor effects at Earth in the next few days, starting Thursday October 16. Likely only high-latitude #aurora is possible.
However - the @esa.int #SolarOrbiter spacecraft observed them!
👇
Launched on 2 October 1991, Soyuz TM-13 carried Austrian research cosmonaut Franz Viehböck, Kazakh cosmonaut Toktar Aubakirov and veteran Russian cosmonaut Alexander Volkov.
Franz Viehböck on the Mir space station
#ThisWeek in 1991! On 2 October, Franz Viehböck became Austria's first astronaut. He was launched on Soyuz TM-13 to the Mir space station with colleagues Toktar Aubakirov and Alexander Volkov, returning on Soyuz TM-12 after just over a week in space.
@aseastronauts.bsky.social @fwf-at.bsky.social
This event was somehow annoying 😅
#heliophysics
Storm update: A flux rope arrived at 10:20 UTC, raising the magnetic field strength to currently 23 nT. For now, Bz remains positive.
Rooting for a low-inclination, left-handed flux rope — that could flip Bz southward and boost #aurora chances again! ✨🤞 Stay tuned!
☀️ Possible Aurora in Austria this evening (solar storm has not arrived yet) ☀️
☀️
This cluster of ☀️ active regions, with sunspots showing magnetic fields in the SDO image on the left, is rotating towards Earth 🌍 in the coming week.
While the sunspot number (from SIDC Belgium, right image) made a dip in the last few months, some elevated solar activity could now be coming up. 👇
Academia may not give you job security, flexibility, or wealth, but it will let you unexpectedly connect to eduroam in foreign cities
Over the weekend our story on new papers on AI 🤖usage for improving #solarstorm ☀️💨 images and their detection by @maikebauer.bsky.social and @lelouedecj.bsky.social has been featured on national Austrian TV (ORF2) and radio (Ö1) (both german)
TV on.orf.at/video/142878...
Proud of our project results achieved by @maikebauer.bsky.social and @lelouedecj.bsky.social 🤩
Following the evolution of solar storms in heliospheric images can now be done automatically using AI. ☀️
www.geosphere.at/en/news-and-...
Dringender Aufruf zum Blutspenden in #Graz
Ab 16:00 im Jugend- und Familiengästehaus in der Idlhofgasse!
Group photo of scientists working on 3D reconstructions of solar storms.
Group photo of scientists working on improving space weather forecasting.
In the last 2 weeks @tamersto.bsky.social, Ute Amerstorfer, @chrisoutofspace.bsky.social and Maike Bauer (online) participated in 2 teams at @issibern.ch to work on 3D reconstructions of #solarstorms, and to improve #spaceweather forecasting from a combined heliospheric and magnetospheric view. ☀️
