#geomagnetic-storm — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #geomagnetic-storm, aggregated by home.social.
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NASA Experiment to Track Space ‘Doughnut’ Encircling Earth 🌑
#ColumbusModule #GeomagneticStorm #Heliophysics #ISS #InternationalSpaceStation #Magnetosphere #Moon #NeutralAtomImaging
⏩ 4 new pictures and 3 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=12&user=OptimusPrimeBot&ilshowall=1&offset=20260502130226
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Getting ready for the next #CarringtonEvent. :-)
"The May 2024 geomagnetic storm was the largest for over 20 years. The storm was categorized as a ‘low-level’ G5, where G5 is the highest on the National Oceanic and Atmospheric Administration (NOAA) scale for geomagnetic storms, yet the individual solar eruptive events were not particularly severe, and the observed impacts were relatively minor. The impacts that were observed were due to the combined and sustained effect of five successive earthward-directed coronal mass ejections (CMEs) which drove the storm. The event exposed the weakness of the current storm classification system which does not discriminate between low impact and high impact G5 events; it exercised the UK Met Office forecasting system, communications and UK preparedness; and it highlighted key areas that need to be addressed, particularly relating to national power supplies, space traffic management, aviation, forecasting and data gaps. Here, we set out what happened, record some of the key impacts, discuss what went well and what needs to be improved. We make 14 recommendations relevant to four government departments, so that the UK can be better prepared for a low-probability, high-impact space weather event described in the reasonable worst-case scenario that informs the national risk register."
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ISS views Aurora from the November 11-13, 2025 Geomagnetic Storm
#Aurorae #CME #GeomagneticStorm #SolarActivity #SpaceWeather #SunearthInteractions #aurora
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=2&user=OptimusPrimeBot&ilshowall=1&offset=20260327125742
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ISS views Aurora from the November 11-13, 2025 Geomagnetic Storm
#Aurorae #CME #GeomagneticStorm #SolarActivity #SpaceWeather #SunearthInteractions #aurora
⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=2&user=OptimusPrimeBot&ilshowall=1&offset=20260327125742
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NASA Interview Opportunity: Moonbound! NASA’s Artemis II Mission Days From Launch — First Crewed Journey Around the Moon in More Than 50 Years! 🌑🧑🚀
#Artemis #Aurorae #Biological&PhysicalSciences #CME #Cleanroom #GeomagneticStorm #HDTV #HumanSpaceflight
⏩ 5 new pictures and 5 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=26&user=OptimusPrimeBot&ilshowall=1&offset=20260409125705
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No Place To Hide? Regional Resilience And Vulnerability To Global Catastrophic Risk
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https://doi.org/10.31223/X56B60 <-- shared paper
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https://en.wikipedia.org/wiki/Global_catastrophic_risk <-- shared Wikipedia page
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#GIS #spatial #mapping #spatialanalysis #spatiotemporal #Agriculture #foodsecurity #watersecurity #EarthScience #geology #risk #hazard #EnvironmentalScience, #EnvironmentalStudies #FoodScience #ForestSciences #Geography #PublicHealth #publicsafety #Global #Catastrophic #NuclearWar #civilisation #Pandemic #HEMP #naturalhazard #Volcanic #vulcanism #Eruption #NearEarthObject #asteroid #GeomagneticStorm #spaceweather #Infrastructure #damage #biology #vegetation #forest #Resilience #Vulnerability #polycrisis -
New preprint!
We reviewed global catastrophic risks: nuclear war, volcanic eruptions, asteroid impacts, cyberattacks, EMP, geomagnetic storms, and pandemics. Which places on Earth are most resilient?
The short answer: nowhere is safe from everything. Australia and New Zealand come closest, but even they have serious vulnerabilities (trade dependence or volcanic exposure).
The key finding is that resilience factors actively trade off against each other. Geographic isolation helps in pandemics but hurts during infrastructure collapse. A large industrial base helps produce emergency food but increases digital vulnerability.
What could help across scenarios: democratic governance, low inequality, decentralized systems, food self-sufficiency, and preparation. Most of these are policy choices, not geographic fate.
You can find the whole preprint here: https://eartharxiv.org/repository/view/12373/
#GlobalCatastrophicRisk #NuclearWar #Pandemic #GeomagneticStorm #Resilience
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NASA Interview Opportunity: Moonbound! NASA’s Artemis II Mission Days From Launch — First Crewed Journey Around the Moon in More Than 50 Years! 🌑🧑🚀
#Artemis #Ast #Astrophysics #Aurorae #CME #GeomagneticStorm #HDTV #HumanSpaceflight
⏩ 4 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=17&user=OptimusPrimeBot&ilshowall=1&offset=20260327130135
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Northern Lights Over North Cork
You don’t expect to stand in a field north of Blarney and watch the northern lights, but here we are. Last night the aurora put on a show visible well into southern Ireland. Bands of pink and magenta hung across thesky, bleeding into that unmistakable...
https://inphotos.org/2026/03/21/northern-lights-over-north-cork/
#astrophotography #aurora #AuroraBorealis #Blarney #Cork #GeomagneticStorm #Ireland #NightSky #NorthernLights #Photo #Photography #RuralIreland #stars
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Northern Lights Over North Cork
You don’t expect to stand in a field north of Blarney and watch the northern lights, but here we are. Last night the aurora put on a show visible well into southern Ireland. Bands of pink and magenta hung across the sky, bleeding into that unmistakable green glow along the horizon. To the naked eye nothing could be seen, but the camera pulled out colours that made the whole scene look otherworldly.
A passing car lit up the bare trees on the ridge at just the right moment, backlighting them with a warm glow that played off the green aurora behind. It was one of those happy accidents you couldn’t plan if you tried. Even the electricity poles added something, a reminder that this was a country road in Cork, not the Arctic Circle. These events have become more frequent as we near solar maximum, so keep an eye on the Kp index and have a dark-sky spot in mind, because the next one might be even better.
Apertureƒ/2.8CameraILCE-7RM5Focal length24mmISO6400Shutter speed3.2s #2026 #astrophotography #aurora #auroraBorealis #Blarney #Cork #geomagneticStorm #Ireland #nightSky #northernLights #Photo #Photography #ruralIreland #SamyangAF24mmF28FE #SonyA7RV #stars -
As Mrs. Doubtfire might say #amateurradio #hamradio #hfbands were "Wicked, Wicked, Wicked" due to #geomagneticstorm but at least I could test recent #km4cft 9:1 unun build & #randomwire with @youkits #hb1b into ATU-10 Autotuner on a beautiful 1st full day of Spring in the U.S.
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Equinox Aurora Lights Might be Visible in Northern US This Week https://petapixel.com/2026/03/18/equinox-aurora-lights-might-be-visible-in-northern-us-this-week/ #GeomagneticStorm #auroraborealis #northernlights #auroralights #spaceweather #auroraalert #equinox #Space #News #noaa
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Could a powerful geomagnetic storm be the reason 8,000 Victorian homes suddenly lost power in January this year?
I had a chat with Dr Richard Marshall from Australian Bureau of Meteorology Space Weather about the origin of solar storms and the risks they present to our communities and critical infrastructure.
So great to be able to have such fantastic and professional insights about these important events and how we, as a society, need to mitigate against them.
https://www.spaceaustralia.com/feature/earthly-impacts-solar-storms
📸 NASA SVS
#SpaceAustralia #SolarStorm #geomagneticstorm #Astrodon #heliophysics
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Viewing an Exoplanet Transmission Spectrum 🛰️
#EarthScience #Exoplanet #ExoplanetAtmospheres #Fleet #GPS #GeomagneticStorm #Heliopause #Heliophysics
⏩ 2 new pictures and 3 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=25&user=OptimusPrimeBot&ilshowall=1&offset=20260127125926
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Powerful solar storm causes GPS disruptions & stunning auroras. Learn about the impact of solar radiation storms on technology and aviation. https://english.mathrubhumi.com/technology/science/severe-solar-storm-earth-gps-disruptions-dwbnyhfq?utm_source=dlvr.it&utm_medium=mastodon #solarstorms #solarflare #geomagneticstorm #GPSdisruption
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South Africa’s SANSA has warned of a geomagnetic storm hitting Earth this week. Expect possible disruptions in radio, GPS, and power grids. 🌍⚡ Watch: #GeomagneticStorm #SANSA #southafrica
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G4 geomagnetic storm explained; what triggered the Sun’s fastest CME in 30 years https://english.mathrubhumi.com/technology/science/g4-geomagnetic-storm-explained-northern-lights-ub7kpme9?utm_source=dlvr.it&utm_medium=mastodon #CME #GeomagneticStorm #AuroraExplained #SpaceWeather #SolarFlare
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South Africa’s SANSA has warned of a geomagnetic storm hitting Earth this week. Expect possible disruptions in radio, GPS, and power grids. 🌍⚡ Read more: #GeomagneticStorm #SANSA #SouthAfrica
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🚨🚨🚨 We're in midst of a massive, direct hit geomagnetic storm right now...
"Storms of this magnitude can disrupt satellite operations, degrade GPS navigation and increase atmospheric drag on spacecraft. They can also supercharge auroral activity..."
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Sun releases the largest solar radiation storm ‘in over 20 years,’ forecasters say
By Ashley Strickland, January 19, 2026
"Powerful solar activity released by the sun is heading for Earth and it’s likely to create dazzling auroral displays in unexpected areas Monday evening and early Tuesday morning. It could also disrupt #satellite-based communications and #GPS accuracy.
"A solar radiation storm, ranked at a level four out of five on a severity scale, is being tracked by the National Weather Service’s Space Weather Prediction Center, or #SWPC.
" 'An #S4 severe #SolarRadiation storm is now in progress - this is the largest solar radiation storm in over 20 years,' SWPC shared on X, formerly known as Twitter. 'The last time S4 levels were observed was in October, 2003. Potential effects are mainly limited to space launch, aviation, and satellite operations.' "
Read more:
https://www.cnn.com/2026/01/19/science/largest-solar-radiation-storm-auroras#SolarFlare #GeomagneticStorm #Satellites #KesslerSyndrome? #Starlink
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CME approaching and Bz is -20! BSUBZ Alert: A minor crack is opening in Earth's magnetic field, setting the stage for geomagnetic storms and auroras. BsubZ is less than -20 nT.
CME ALERT: A coronal mass ejection (CME) is approaching Earth.CMEs generally arrive 20 to 30 minutes after you receive this email. The full window for possible arrival of the CME is:
#aurora
#CME
#geomagneticstorm
#photography
#astrophotography
#smartphoneastronomy -
A solar proton storm (S3) is already in progress after a powerful X-class solar flare. Now NOAA warns a SEVERE G4 geomagnetic storm is possible the night of Jan 19–20, when a CME from an X1.9 long-duration flare hits Earth. Aurora may be visible across northern U.S. states—and camera-visible color could reach as far south as AZ, TX & SoCal. Charge phones and look north! https://spaceweather.com/
#SolarStorm #AuroraAlert #SpaceWeather #GeomagneticStorm #CME #SolarFlare
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G4 (Severe) Geomagnetic Storm Watch for 20 January UTC-Day
published: Monday, January 19, 2026 15:37 UTCA G4 (Severe) geomagnetic storm watch is in effect for the 20 January UTC-day due to Earth-arrival of a coronal mass ejection (CME). The CME blasted from the Sun on 18 Jan, in association with an energetic R3 (Strong) solar flare from a sunspot region near center-disk, and is anticipated to arrive at Earth as early as late 19 Jan EST to early 20 Jan. While the G4 Watch is out for the 20 Jan UTC-day, geomagnetic storm levels could range from G1-G3 (Minor-Moderate) upon CME arrival later on 19 Jan EST. CME passage is expected to continue through 20 Jan, but conditions are likely to weaken later in the day. G1 levels remain possible on 21 Jan due to residual CME related effects. Forecasters have a fair measure of confidence in timing and of CME arrival at Earth.
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NASA’s Pandora Satellite to Explore Exoplanets and Stars ✨
#Ast #Astrophysics #CoronalMassEjections #Exoplanet #ExoplanetAtmospheres #GeomagneticStorm #Graphics #Heliophysics
⏩ 3 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=15&user=OptimusPrimeBot&ilshowall=1&offset=20260110125858
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Strong (G3) #GeomagneticStorm WATCH Valid for 09 Dec 2025
published: Sunday, December 07, 2025 04:42 UTC
A full-halo coronal mass ejection (#CME), associated with an M8.1 flare from Region 4299 at 20:39 UTC on 06 December, is expected to impact Earth early to midday on 09 December, potentially causing periods of G3 (Strong) geomagnetic storming.
Strong Geomagnetic Storm WATCH Valid for 09 December G3
WHAT: A CME is expected to arrive at Earth on 09 December and lead to increased geomagnetic field activity.
EVENT:
A coronal mass ejection (CME) is an eruption of solar material and magnetic fields. When they arrive at Earth, a geomagnetic storm can result. Watches at this level are infrequent, but not uncommon.
EXPECTATION:
A CME is anticipated to arrive at Earth early to midday on 09 December causing elevated geomagnetic field activity, and dependent upon the orientation of the embedded magnetic field, potential exists for G3-Strong storm levels.
EFFECTS:
Limited, minor effects to some technological infrastructure possible, but usually mitigatable. The aurora may become visible over many of the northern states and some of the lower Midwest to Oregon. The general public should consider monitoring our webpage for the latest information and updates.
https://www.swpc.noaa.gov/news/strong-g3-geomagnetic-storm-watch-valid-09-dec-2025
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#SpaceWeather News for Dec. 7, 2025
"A SOLAR STORM IS HEADING DIRECTLY FOR EARTH: Strong G3-class #GeomagneticStorms are possible on Dec. 9th when a full-halo #CME is expected to strike our planet. The storm cloud was hurled in our direction on Dec. 6th by an almost- #XClass #SolarFlare. Full story @ Spaceweather.com."
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🚨 THE WRONG SUNSPOT KEEPS ERUPTING 🚨
While everyone’s watching monster AR4294–4296, the real action came from AR4299 on Dec. 6, firing an almost X-class M8 flare and launching a CME straight at Earth. A full-halo CME is inbound, with NASA eyeing a Dec. 9th arrival and possible G2–G3 geomagnetic storms. Mid-latitude auroras? On the menu.
More: https://spaceweather.com/#SolarFlare #SpaceWeather #Aurora #CME #Astronomy #WestportObservatory #Sunspot #SolarActivity #GeomagneticStorm
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Characteristics of temporal and spatial variation of the electron density in the plasmasphere and ionosphere during the May 2024 super #GeomagneticStorm: https://link.springer.com/article/10.1186/s40623-025-02317-3 -> How superstorm Gannon squeezed Earth’s plasmasphere to one-fifth its size: https://www.eurekalert.org/news-releases/1106633 - new study shows how a major space storm dramatically shrank Earth’s protective plasma layer and slowed its recovery, helping improve solar storm forecasts and protect space infrastructure we rely on.
