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aretsch.bsky.social

@aretsch.bsky.social
234 followers 301 following 1.1K posts

📸🛰🗺️🌋🇦🇶 🌍 🌒 🌞 Planet Earth, you are a crew! (Christina H. Koch Astronaut , Mission Specialist Artemis II)

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p.s @p-s-v.bsky.social · 4h
Gorgeous filament eruption near the center of the Sun (8.10.26) Video from helioviewer
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Josef Aschbacher @josefaschbacher.esa.int · 14h
Envisioned, built, and launched by Europe. @esa.int keeps delivering the reliable satellites that enable the European Commission's world-leading Copernicus programme. And now, Sentinel-3C is showing us what it can do. www.esa.int/Applications...
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Simeon Schmauß @stim3on.bsky.social · 07/10/2026
Six months have passed since the #ArtemisII mission and NASA has just released the reentry video from the Orion capsule! Here is a timelapse of the reentry, but be sure to check out the realtime version linked below! 🔭🧪
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Lisa @tuexplorer1.bsky.social · 14h
Since it's World Octopus Day I have to be transparent & show you my favorite Octopus. Vitreledonella richardi from @schmidtocean.bsky.social dive 556 #ventunderworld #MarineLife
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aretsch.bsky.social @aretsch.bsky.social · 8h
Anaglyph images like these still inspire me. Grab your 👓 flic.kr/p/BNLb3m
flic.kr
Cycle Circle - Stereo Anaglyph
The architect's gift to the stereo photographer! Fuji Real 3DW3 stereo anaglyph red-cyan, previously uploaded as cross-view (see my photostream) Red-Cyan glasses required
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aretsch.bsky.social @aretsch.bsky.social · 08/10/2026
🌋Kilauea, Hawaii SO2 emissions Seen on the awesome project: mapped.earth from @aaronjbecker.bsky.social and the live webcam from USGS: www.youtube.com/live/f9-oSpYpubg
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aretsch.bsky.social @aretsch.bsky.social · 08/10/2026
🐧Phoenix Penguin Colony 🇦🇶 Antarctica , Stancomb-Willy Ice Tongued. Seen from Space by 🛰Sentinel-2 2026.09.10 - 2026.10.07 Link.dataspace.copernicus.eu/rqz3 @ptfretwell.bsky.social
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Communications Biology @commsbio.nature.com · 21/09/2026
Satellite observations reveal five newly identified emperor penguin colony sites suggesting that colonies are dynamic relocating over long distances in response to changing ice conditions @ptfretwell.bsky.social @bas.ac.uk www.nature.com/articles/s42...
nature.com
Dynamic emperor penguin colonies - Communications Biology
Satellite observations reveal five newly identified emperor penguin colony sites, suggesting that colonies are dynamic, relocating over long distances in response to changing ice conditions and reshap...
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British Antarctic Survey 🐧 @bas.ac.uk · 07/10/2026
The reason? Warming waters are pushing their favourite food, krill, further away, leaving the penguins with a tough choice: follow it away from suitable breeding grounds, or go hungry. 🔗 Read the full story: www.bas.ac.uk/news/penguin... 🧵2/2
bas.ac.uk
Penguin population collapse on volcanic island  - British Antarctic Survey
A remote Antarctic island has lost its title of largest penguin colony in the world, as new research reveals massive population declines.
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aretsch.bsky.social @aretsch.bsky.social · 07/10/2026
Wow 😎
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Huub Eggen @huubeggen.bsky.social · 06/10/2026
FYI @daveatcogs.bsky.social @elisabethkosters.bsky.social
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Peter Gibbs @petergibbs.bsky.social · 07/10/2026
AI has proved to be remarkably good at weather forecasting. The development of this tropical storm in the Gulf of Mexico will provide an interesting test over the next few days as the AI predictions are significantly different to those from conventional models
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aretsch.bsky.social @aretsch.bsky.social · 07/10/2026
🇮🇸 🌋 This channel actually always has interesting videos and insights into the geological and volcanic current events in Iceland. youtu.be/MOfYCL2JUAw
youtu.be
Iceland’s Volcanic Zones Are Stirring: A Look at the Latest Seismic Activity
YouTube video by Just Icelandic
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aretsch.bsky.social @aretsch.bsky.social · 06/10/2026
🇦🇶🌋Erebus , Antarctica 📸🛰Sentinel-2 2026.10.06
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aretsch.bsky.social @aretsch.bsky.social · 05/10/2026
🌋Etna today 📸🛰 Sentinel-2 2026.10.05. 09:50UTC
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aretsch.bsky.social @aretsch.bsky.social · 05/10/2026
🐧Dawson-Lambton Penguin Colony 🇦🇶 Antarctica Seen from Space by 🛰Sentinel-2 Fortunately, they haven't given up there yet 👍 @ptfretwell.bsky.social @sentinelonline.bsky.social
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p.s @p-s-v.bsky.social · 05/10/2026
2 nice plasma eruptions from behind the SE & E sides of the Sun 4.10.26 Videos www.ssec.wisc.edu/data/geo/#/a... . Note: because website ssec.wisc.edu keeps data for one and half day if you enter the link after 2 days it will show you error
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HydrologyNL @hydrology.nl · 02/10/2026
Cracks in the US of A after an impact from extraterrestrial space. 👇
A high-resolution digital elevation map showing a vast, desert-like landscape in shades of beige and light brown. On the right side of the image, a large, well-defined circular impact crater stands out, featuring steep, shadow-cast inner walls and a dark green floor. To the left, a long, deeply carved, winding canyon river system cuts vertically through the terrain with prominent shadows, resembling a jagged lightning bolt or deep crack in the earth. The bottom-right corner includes a small watermark that reads "HydrologyNL".
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Earth Daily 🌍🛰 @earthdaily.bsky.social · 02/10/2026
🇮🇹 Campania's iconic coast is revealed, with Mount Vesuvius prominent. Impervious surfaces glow bright green, vital for land use, erosion, and disaster risk. 📍 Unknown 📸 European Union
The Campania region of Italy
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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 02/10/2026
gif animation showing the changes in the remnant between 2022 and 2025, using the filter F200W. 2022 epoch is from this program: www.stsci.edu/jwst-program... I used a fading technique, but it is just two images.
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Yuval Harpaz 𝚿👨‍🎓 📊🌌🔭 @yuvharpaz.bsky.social · 02/10/2026
Beautiful
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aretsch.bsky.social @aretsch.bsky.social · 02/10/2026
🌋Anak Krakatau 📸🛰 Sentinel2 2026.09.30 Ongoing Eruption
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aretsch.bsky.social @aretsch.bsky.social · 01/10/2026
Volcanos today : Nyragongo (cloud free) Nyamuragira 📸🛰 Sentinel-2 2026.09.30
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cira-csu.bsky.social @cira-csu.bsky.social · 01/10/2026
Earlier this morning, NASA's Crew-13 launched from Cape Canaveral, Florida on a rendezvous with the International Space Station.
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𝓖ö𝓷𝓰𝓾 𝓓ó𝓽𝓽𝓲𝓻 ©®__ 🦋 _ 🐘 @gongudottir.bsky.social · 01/10/2026
🇮🇸 🌋 Reykjanes - Svartsengi 🟨 The Veðurstofa Íslands has uploaded an 🆕 update Situation on the Reykjanes Peninsula Land uplift and magma accumulation continue ◉ Slow ground uplift continues at Svartsengi ◉ Seismic activity remains low 1/2
Deformation measurements show continued ground uplift in the Svartsengi area. Approximately four centimetres of uplift have been measured over the past three months, with the rate remaining relatively steady throughout this period.

The uplift indicates that pressure is still building at a depth of several kilometres.

The InSAR image above shows continued ground uplift at Svartsengi between 20 July and 13 September 2026. InSAR uses comparisons of satellite radar images to measure ground deformation. The black outlines mark lava fields formed during previous eruptions along the Sundhnúkur crater row and at Fagradalsfjall.

The image was produced using data from the TerraSAR-X satellite. The German Aerospace Center (DLR) provided the data through the GEO-GSNL initiative, supported by CEOS, an international forum for satellite-based Earth observation.Magma accumulation can continue for a long time
There is no evidence that the eruptive episode along the Sundhnúkur crater row is coming to an end. The Reykjanes-Svartsengi volcanic system remains at alert level 2, “Substantially increased activity” (orange).

Before the eruptive episode can be declared over, monitoring data must show clear evidence of this over an extended period.

The Volcano Alert Level System (VALS) is used by the Icelandic Meteorological Office to communicate information about activity in Iceland's volcanic systems.

The figure below shows the signs required before the alert level can be lowered. Once the volcanic system has been returned to alert level 0, the eruptive episode can be considered over.

Even if magma accumulation stops for several months, it may resume beneath Svartsengi. Eruptive episodes on the Reykjanes Peninsula can last for decades or centuries, with intervals between individual events. A long interval between eruptions therefore does not indicate that activity has ended
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Melina Thévenot🏳️‍⚧️ @melina-iras07572.bsky.social · 01/10/2026
Remnant of SN 1987A, a #supernova that exploded in the nearby Large Magellanic Cloud. September 2022 image with #JWST NIRCam (F150W, F200W, F212N, F405N). program: www.stsci.edu/jwst-program...
A orange nebula with a yellow inner dotted ring. Inside this ring is a blue-violet nebula.
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VAW Glaciology @vaw-glaciology.bsky.social · 01/10/2026
Switzerland's glacier report 2026 is out. Swiss glaciers have lost 5% of their ice volume this year. Only the last 5 years accounted for nearly 20% of the total ice loss across Switzerland. The numbers are devastating. Full report → doi.glamos.ch/pubs/annualr...
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Paul Byrne @theplanetaryguy.com · 28/09/2026
This is a photo of our home planet taken only a few hours ago! So what? We have photos of Earth taken from space every day. Ah, but *this* photo was taken by a spacecraft ON ITS WAY TO JUPITER.
From the source: "Mostly black space, most of Earth visible at the top right of the image. Part of a spacecraft visible on the left."
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European Space Agency @esa.int · 30/09/2026
Our Smile mission is ready for science. Its ultraviolet camera has already captured this substorm rippling through the northern lights around Earth’s North Pole. @science.esa.int 🧪🔭
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p.s @p-s-v.bsky.social · 30/09/2026
Zoomable version esawebb.org/images/potm2...
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aretsch.bsky.social @aretsch.bsky.social · 30/09/2026
Marine heatwave conditions have been affecting the western Mediterranean Sea and parts of the north-eastern Atlantic through the summer of 2026, and unusually warm sea surface temperatures remained widespread on 13 August 2026. eu-space.europa.eu/components/e...
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aretsch.bsky.social @aretsch.bsky.social · 30/09/2026
🇦🇶🌋Melbourne, Antarctica One 🌋from the study of @ingvvulcani.bsky.social 🛰🌋 Sentinel-2 2026.03.16 link.dataspace.copernicus.eu/9f4t
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INGVvulcani @ingvvulcani.bsky.social · 29/09/2026
Due vulcani antartici, e una domanda: e se si risvegliassero? "Cenere sul continente bianco ", un nuovo interessante articolo sul blog INGVvulcani. Leggilo qui: buff.ly/lBqGqYB
buff.ly
Cenere sul continente bianco - INGVvulcani
Valutazione del rischio vulcanico associato ad una eventuale eruzione vulcanica in Antartide
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aretsch.bsky.social @aretsch.bsky.social · 29/09/2026
Volcano #Nyamuragira Lava flow since 2026.07. 📸🛰#Sentinel1 Footage: @sentinelonline.bsky.social
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aretsch.bsky.social @aretsch.bsky.social · 29/09/2026
🌋Etna Development seen by 🛰Sentinel-1 link.dazaspace.copwrnicus.eu/9dql
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aretsch.bsky.social @aretsch.bsky.social · 29/09/2026
🌋 Anak Krakatau Development seen by 📸🛰 Sentinel-1 2026.05.11 -2026.09.27 Link.dataspace.copernicus.eu/ayg8
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aretsch.bsky.social @aretsch.bsky.social · 29/09/2026
🌋 Anak Krakatau 📸🛰 Sentinel-2 2026.09.28
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Kilian Schönberger @kilianschoenberger.bsky.social · 29/09/2026
Rainbow Dream A beautiful evening in the South of Bavaria, Germany #landscapephotography #landschaftsfotografie #rainbow
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Southwest Research Institute @swri.org · 25/09/2026
Lego® toy bricks and heliophysics are a perfect match! Download the plans to build your own wide field imager. The SwRI-developed instrument is currently part of NASA’s Polarimeter to UNify the Heliosphere and Corona (PUNCH) mission. ow.ly/Rklh50ZRx4A
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aretsch.bsky.social @aretsch.bsky.social · 28/09/2026
McMurdo-Station, Antarctica 📸🛰 Sentinel-2 2026.09.27
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Mary C. Henry @maryhenrygeo.bsky.social · 28/09/2026
That fire is still burning on the slopes of Mount Kilimanjaro tonight. www.youtube.com/live/XsOU8Jn...
An elephant on infrared camera at a water hole near ol Donyo Lodge Kenya. A fire is burning in the distance on the slopes of Mount Kilimanjaro.
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aretsch.bsky.social @aretsch.bsky.social · 28/09/2026
🇦🇶 Erebus volcano , Antarctica First 📸 after the Antarctic winter from the orbit of 🛰Sentinel-2 2026.09.23 20:37 UTC Wider view Close-up Link.dataspace.copernicus.eu/fz1s
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Hourly Cosmos @hourlycosmos.bsky.social · 28/09/2026
Marsrover Perseverance Mastcam-Z Sol 768 - From Simeon Schmauß (stim3on.bsky.social) - flic.kr/p/2ptsC6S
Credit: NASA/JPL-Caltech/ASU/Simeon Schmauß
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marc konijn @marckonijn.bsky.social · 24/09/2026
Fucking heftig weer Het gebeurt voor onze ogen - en het blijft maar stil Eind september, 40C in Portugal, duizenden weerstations in Europa waar records worden verbroken voor deze eerste herfstweek, soms met 5C verschil Holymoly!! 1/
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aretsch.bsky.social @aretsch.bsky.social · 28/09/2026
Two of the historic lowest water levels of the Rhine near Cologne Hot summer 🌡️ & lack of sufficient rain 🌧️ causes problems in shipping traffic..... 📸🛰 Sentinel-2 2018.09 vs. 2026.09. www1.wdr.de/nrw/koeln/rhein-pegel-niedrigwasser-historischer-tiefstand-100.html
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EUMETSAT @eumetsat.int · 28/09/2026
EUMETSAT has officially taken charge of Copernicus Sentinel-4. 🛰️ Flying on #MTGS1, Sentinel-4 will provide hourly observations of air quality & atmospheric composition over Europe, helping improve European air quality forecasts. Service is expected to begin in 2027: bit.ly/3TVaNR1
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aretsch.bsky.social @aretsch.bsky.social · 28/09/2026
🇦🇶 Halley VI Research Station, Antarctica Good morning 🌅
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aretsch.bsky.social @aretsch.bsky.social · 27/09/2026
🌋 Etna 📸🛰 Sentinel-2 2026.09.27 14:55UTC
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aretsch.bsky.social @aretsch.bsky.social · 27/09/2026
🌋 Erta Ale 📸🛰 Sentinel-2 2025.07-2026.09. link.dataspace.copernicus.eu/3eix
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aretsch.bsky.social @aretsch.bsky.social · 27/09/2026
#Aurora Borealis & the Moon 2026.09.27
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