Physicist, microscopist, amateur astronomer, landscape photographer.
Stuttgart, Germany
Joined September 2009
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Björn Hoffmann retweeted
Vielen ist nicht mehr bewusst, dass ≥ 35°C selbst im Oberrheingraben früher selten waren und nur alle paar Jahre mal 1 bis 2 Tage dabei waren. Nach 2003 und 2015 stellt der Sommer 2026 nun alles in den Schatten. /FR
Björn Hoffmann retweeted
Foto al eclipse hecha hoy con mi Xiaomi 17 Ultra y un filtro protector de la lente. ¿Notáis algo raro?
Pues sí, la luna era la otra. Ha detectado una esfera brillante en el cielo, se ha puesto en modo "superluna", y directamente se ha inventado toda la superficie – at Madrid, Spain
Björn Hoffmann retweeted
Relevant xkcd for those of you within a drivable distance to the total eclipse.
A 91% eclipse does not mean it’s 91% as cool as a total eclipse.
If you can’t make it to totality, a partial eclipse is still worth seeing… but a total eclipse is more than worth the extra effort.
Björn Hoffmann retweeted
Somewhere between the indestructible American ice cream, rubbery watermelons, and uncrushable strawberries, I believe you'll find a whole new appreciation for EU food safety standards.
Björn Hoffmann retweeted
If you still don't think climate change is making these fires worse, feel free to comment. It'll also be the last comment you ever make on one of my posts.
Björn Hoffmann retweeted
Canada is on fire.
Europe is on fire.
The Amazon is on fire.
Cities are breaking heat records.
Rivers are drying up.
Other countries are drowning in floods.
Storms are getting stronger.
Seasons don’t feel like seasons anymore.
And somehow…
climate change is still a debate.
One single photo, only 13 seconds, but 12 satellites on it. This fucking space junk is ruining Milky way photography.
Björn Hoffmann retweeted
The largest solar radiation storm in over 20 years is now underway.
An S4 severe solar radiation storm is in progress and the last time this level was observed was October 2003.
Potential impacts are expected to be largely confined to space launches, aviation, and satellite operations.
Björn Hoffmann retweeted
Latest NASA CME model: CME may be FASTER than originally anticipated. Impact is slated for Jan 20 around 1 UT--it's a very fast CME and could deliver strong geomagnetic storming Monday night with auroras visible across mid-latitudes. We'll see what happens over the next 24 hr!
Björn Hoffmann retweeted
Major X1.95 flare from sunspot region 4341
Follow live on spaceweather.live/l/flare
Björn Hoffmann retweeted
Last night was pretty crazy. We're expecting another significant CME arrival around 20:00Z today (3:00pm ET) which could enhance the already disturbed geomagnetic field. We could see further periods of strong and severe geomagnetic storm conditions into this evening if so. A great forecast so far!
Björn Hoffmann retweeted
Da strahlen sie - die verschneiten Berggipfel der Alpen. Die Polarlichter tanzen über Mitteleuropa.
#aurora #Auroraborealis
foto-webcam.eu
Björn Hoffmann retweeted
I have never seen the Bz below -60 nT. This is one of the lowest recorded values in the last twenty years if not the lowest. G4-G5 storming is entirely possible if these conditions can sustain. The aurora will now quickly react to this pressure pulse. Get ready! Webcams will be crucial for following this event closely.
go.theauroraguy.com/webcams
Björn Hoffmann retweeted
CME impact detected - Current Solar Wind Speed 624km/sec - IMF: Bt (strength): 39nT & Bz: -31nT (South).
Follow live on spaceweather.live/l/aurora
