Tootfinder

And the #ArtemisII stack is back in the VAB, arriving around 1:00 UTC today: https://www.nasa.gov/blogs/missions/2026/02/25/nasa-artemis-ii-rocket-returns-for-repairs/ - while in the assembly building, technicians will troubleshoot the helium flow issue to the rocket’s upper stage, replace batteries on the rocket’s upper stage, core stage, and solid rocket boosters as well as service its flight termination system.

Google sets a 2029 deadline for its post-quantum cryptography migration, aiming to "secure the quantum era" as "frontiers may be closer than they appear" (Dan Goodin/Ars Technica)
https://arstechnica.com/security/2026/

Google bumps up Q Day deadline to 2029, far sooner than previously thought
Company warns entire industry to move off RSA and EC more quickly.

First Resolution of a Main Sequence G-Star #Astrosphere Using Chandra: https://arxiv.org/abs/2512.09613 -> Young ‘Sun’ Caught Blowing Bubbles by NASA’s Chandra: https://www.nasa.gov/missions/chandra/young-sun-caught-blowing-bubbles-by-nasas-chandra/

Vorbeiflug an Erde 2029: Mehrere Landungsmissionen auf Apophis geplant
Der Asteroid Apophis wird im Frühjahr 2029 sehr nah an der Erde vorbeifliegen. Mehrere Sonden sollen in diesem Zeitraum auf ihm landen.

Super Bowl expected to return to Las Vegas in 2029; vote coming next week https://www.reviewjournal.com/sports/football/super-bowl/super-bowl-expected-to-return-las-vegas-in-2029-vote-coming-next-week-3729501/

The Vera C. #Rubin Observatory has released its first alerts documenting astronomical events spotted by the observatory: https://noirlab.edu/public/news/noirlab2605/ - Rubin issued 800,000 alerts the night of 24 February which called scientists’ attention to new asteroids, exploding stars, and other changes in the night sky; this milestone marks the launch of a system expected to eventually produce up to seven million alerts per night.

Joe Scarborough and Mika Brzezinski say they have re-signed their Morning Joe contracts with MS NOW through the end of 2029, as their show enters its 20th year (Axios)
https://www.axios.com/2026/03/25/morning-joe-scarborough-brzezinski-msnbc-contract…

Scoop: Joe Scarborough, Mika Brzezinski renew "Morning Joe" contracts
The duo re-signed through 2029 as the show nears its 20th year.

A New Method for Probabilistic Spatiotemporal Forecasts of Solar Soft X-Ray “S-Class” (>X10) #Superflares: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025JA034977 -> Scientists Successfully Predict When and Where Dangerous Solar Storms Are Likely to Happen: https://www.ceres-science.com/post/scientists-successfully-predict-when-and-where-dangerous-solar-storms-are-likely-to-happen - breakthrough forecasting method validated by surprise solar eruptions on the far side of the Sun.

Super Bowl expected to return to Las Vegas' Allegiant Stadium in 2029: Source https://www.nytimes.com/athletic/7147267/2026/03/25/super-bowl-63-las-vegas-allegiant-stadium/

Near the end of a sad journey ... the #ArtemisII stack almost back at the VAB after crawling for 9 1/2 hours, from the live feed https://www.youtube.com/watch?v=xCrPD7tfcr0 - see https://www.nasa.gov/blogs/missions/ for updates.

Noch ein paar der zuletzt hier besonders häufig geteilten #News:
Vorbeiflug an Erde 2029: Mehrere Landungsmissionen auf Apophis geplant

Raiders’ home stadium expected to be site of Super Bowl LXIII in 2029 https://raiderswire.usatoday.com/story/sports/nfl/raiders/2026/03/25/raiders-home-field-expected-to-be-site-of-super-bowl-lxiii…

https://mastodon.social/@PlanetariumBochum/116133879381718417
The two genuine images of the annular solar eclipse published so far - everything else is (stupid) fakery: https://www.cieletespace.fr/article/voici-les-seules-vraies-photos-de-l-eclipse-de-soleil-17-fevrier

#Bruttospeicherleistung von #Batteriespeichern nach Marktakteur in #Deutschland ab 2012 mit Stand vom 17.03.2026.
Betrachtet werden Datensätze mit Betriebsstatus „akti…

No, there is no magnificent 'planetary parade' in the evening right now as the internet shouts from everywhere but on the other hand there is also more to see than just Jupiter high in the sky - as I could confirm Wednesday from Bochum, Germany, at 51.5°N, #Venus is already a bright if rather low evening star while #Saturn and #Mercury could still be spotted above her: see https://www.facebook.com/dan.fischer.393/posts/pfbid027a6qUBbjXPf96BtzV89HNTcEA8Z2y9gorSCns8sTzS3nTFUpngTXwagopfUAw6Ngl for more pictures and hard numbers!

ALMA #CentralMolecularZone Exploration Survey (ACES) - Overview: https://arxiv.org/abs/2602.20340 and five other papers -> Largest image of its kind shows hidden chemistry at the heart of the Milky Way: https://www.eso.org/public/news/eso2603/

"Norway hits pause on deep-sea mining until 2029 amid growing environmental pressure"
#Norway #Oceans #Environment

Norway hits pause on deep-sea mining until 2029 amid growing environmental pressure | The Optimist Daily

Weniger #Plastikmüll:
#Mungobohnensprossen sind gesund und einfach selbst zu ziehen! 🌱
Wer gern asiatische #Gemüsepfannen brutzelt, weiß das zu schätzen. Möch…

Küchentipp: Mungobohnensprossen selber machen mit einem DIY-Sprossenglas
Mungobohnensprossen sind eine gesunde und leckere Zutat für viele Gerichte. Mit einem DIY-Sprossenglas kannst du sie ganz einfach selbst ziehen.

In its 2026-2027 plan, the BBC says it plans to cut its cost base by 10%, suggesting cuts worth up to £600M, and increase content spend by £180M to £2.7B (Jake Kanter/Deadline)
https://deadline.com/2026/03/bbc-content-cuts-warning-1236766605/

BBC Warns Of “Difficult” Content & Service Cuts As It Targets Savings Worth Hundreds Of Millions
The BBC has warned that it will be required to make cuts to content and services as it seeks savings worth 10% by March 2029.

The Type II SN 2025pht in NGC 1637 - A Red Supergiant with Carbon-rich Circumstellar Dust as the First JWST Detection of a #Supernova Progenitor Star: https://iopscience.iop.org/article/10.3847/2041-8213/ae04de -> Webb locates former star that exploded as supernova: https://esawebb.org/news/weic2604/ & https://science.nasa.gov/missions/webb/nasas-webb-telescope-locates-former-star-that-exploded-as-supernova/ -
Webb shows star was surrounded by a vast shell of carbon-rich dust.

Verteilung der #Speicherkapazitäten für sonstige #Batterien nach Bundesland in #Deutschland mit Stand vom 17.03.2026.
59 nicht aktive und 0 sonstige Batterien ohne Inbetrieb…

Super Bowl expected to return to Las Vegas' Allegiant Stadium in 2029: Source https://www.nytimes.com/athletic/7147267/2026/03/25/super-bowl-63-las-vegas-allegiant-stadium/

Formation and Survival of Complex Organic Molecules in the Jovian Circumplanetary Disk: #Jupiter

MUSE Study of Two Giant Low-surface-brightness #Galaxies with Compact Satellites: https://iopscience.iop.org/article/10.3847/1538-4357/ae3139 -> Rare Giant Galaxies: https://aasnova.org/2026/02/23/featured-image-rare-giant-galaxies/

Constraining properties of dust formed in #WolfRayet binary WR 112 using mid-infrared and millimeter observations: #dust grains emanating from a massive #BinaryStar system: https://public.nrao.edu/news/a-quintillion-to-one-giant-stars-tiny-dust/

RE: https://mastodon.online/@tinoeberl/116258085903089662
Yeeeeh,
1. Tag im Jahr 2026 mit 1 kWh Ausbeute. 😊

Simultaneous Double Transits of #Phobos and #Deimos as Seen from the Martian Surface - A Millennium Catalogue: #Mars

#CoronaDischarges Glow on Trees Under Thunderstorms: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL119591 -> Thunderstorms conjure ghostly coronae in treetops, observed outdoors for the first time: https://news.agu.org/press-release/thunderstorms-conjure-ghostly-coronae-in-treetops-observed-outdoors-for-the-first-time/ - the weak electric discharges may set off ultraviolet sparkles over large swaths of forest under storms, potentially impacting canopy health (this is fringe geophysics but some amateur astronomers are going after corona discharges - esp. in webcam images from mountain sites - with a vengeance, so here goes).

Due to weather, NASA now is targeting early Wednesday, Feb. 25, to roll the SLS (Space Launch System) rocket and Orion spacecraft for #ArtemisII off the launch pad and back to the Vehicle Assembly Building (VAB) at the agency’s Kennedy Space Center in Florida: https://www.nasa.gov/blogs/missions/2026/02/23/nasa-targets-artemis-ii-rollback-on-wednesday/ - cold temperatures and high winds are expected Tuesday, and rolling on Feb. 25, gives teams enough time to complete preparations at the launch pad that were limited today by high winds in the area.

🛌 Wissen fürs Kopfkissen: 📖
Wie erkennt man eigentlich, ob #Kipppunkte im #Klimasystem bereits überschritten wurden? Wenn sich das #Klima schleichend verändert, ist der genaue Zeitpunkt zunäc…

Kipppunkte im Klimasystem: Die ersten sind erreicht - vor 25 Jahren
Wie nah sind wir am Klimakollaps? Kipppunkte im Klimasystem – welche wurden bereits überschritten?

Die #Kernfusionskollektoranlage hat heute 1,006 kWh Energie eingefangen.
Gesamtleistung: 480 Wp
Ausrichtung: West
Anstellwinkel: 58 Grad
Diese #Balkonsolaranlage wurde durch das Berliner SolarPLUS-Programm gefördert.
Einspeiseverlust: 4.31 %

Verteilung der #Speicherkapazitäten für #Metallhydridbatterien nach Bundesland in #Deutschland mit Stand vom 17.03.2026.
7 nicht aktive und 0 Metallhydridbatteri…

Verteilung der #Speicherkapazitäten für #Hochtemperaturbatterie nach Bundesland in #Deutschland mit Stand vom 17.03.2026.
0 nicht aktive und 0 Hochtemperaturbat…

Verteilung der #Speicherkapazitäten für Redox-Flow-Batterie nach Bundesland in #Deutschland mit Stand vom 17.03.2026.
9 nicht aktive und 0 Redox-Flow-Batterien ohne Inbetriebnahmedatum wurden ausgefiltert.
Der Datenbestand enthält ggf. unplausible Datensätze.
👉…

Verteilung der #Speicherkapazitäten für #Bleibatterie nach Bundesland in #Deutschland mit Stand vom 17.03.2026.
135 nicht aktive und 0 Bleibatterien ohne Inbetriebnahmeda…

NASA is taking steps to potentially roll back the #ArtemisII rocket and Orion spacecraft to the Vehicle Assembly Building (VAB) at the agency’s Kennedy Space Center in Florida after overnight Feb. 21 observing interrupted flow of helium to the SLS (Space Launch System) rocket’s interim cryogenic propulsion stage: https://www.nasa.gov/blogs/missions/2026/02/21/nasa-troubleshooting-artemis-ii-rocket-upper-stage-issue-preparing-to-roll-back/ - the upper stage uses helium to maintain the proper environmental conditions for the stage’s engine and to pressurize liquid hydrogen and liquid oxygen propellant tanks; the systems worked during NASA’s Artemis II wet dress rehearsals, but teams were not able to properly flow helium during normal operations and reconfigurations following the wet dress rehearsal that concluded Feb. 19.

Verteilung der #Speicherkapazitäten für #Lithiumbatterien nach Bundesland in #Deutschland mit Stand vom 17.03.2026.
2914 nicht aktive und 2 Lithiumspeicher ohne Inbet…

RE: #LunarEclipse the darker it gets - but the correlation isn't that good and more factors are in play (which are difficult to determine because eclipses - with good data - are so rare).

Whatever eagerly awaited #Kreutz #comet C/2026 A1 (MAPS) is up to - see also https://groups.io/g/comets-ml/topic/118409957 and https://nitter.net/JAtanackov/status/2035718257060036738 and https://scicomm.xyz/@qicheng@cometary.org/116262858373488354 - less than two weeks from perihelion, it has developed a long plasma tail now: https://www.facebook.com/photo/?fbid=25816609931372735 (Rhemann & Jäger yesterday with a 12 inch telescope; full and detail).

🍮 Wissen zum Nachtisch: 🍨
Wie kann man #Ackerflächen widerstandsfähiger gegen #Extremwetter machen?
Ein altes Anbausystem rückt wieder stärker in den Fokus und eröffnet Chancen für den #Bodenschutz

Klimaanpassung in der Landwirtschaft: Agroforst schützt Boden und Biodiversität
Agroforst rettet Böden und schützt das Klima – entdecke, wie Bäume auf Feldern gegen Hitze, Erosion und Artenverlust helfen können

Launch of #Progress MS-33 in a few minutes: https://www.youtube.com/watch?v=O1OaCfLTPnw

Anzahl der #Batteriespeicher je #Batterietechnologien in #Deutschland mit Stand vom 17.03.2026.
3124 nicht aktive und 0 Batteriespeicher ohne Inbetriebnahmedatum wurden a…

Only four days after the Ohio event another daylight #fireball yesterday, this time over Texas and again with at least one meteorite fall: https://ares.jsc.nasa.gov/meteorite-falls/events/houston-tx (with early strewnfield map) and https://fireball.amsmeteors.org/members/imo_view/event/2026/1959. Videos of the fireball: https://www.facebook.com/groups/meteoriteclub/posts/10164095912741620/ and https://www.facebook.com/groups/meteoriteclub/posts/10164095916361620/ and https://www.facebook.com/groups/meteoriteclub/posts/10164095412946620/. And the meteorites: https://www.fox26houston.com/news/houston-meteor-reports-rock-woman-home-crash-2026-march and https://www.facebook.com/Fox4DFW/posts/pfbid0xBvNspDzKjdKqeGGoZXRVgEAYAQ3sUxM5WsESReTux2kV9SVTZKkMfnwRB8rJp83l

Spanne der Bruttospeicherleistung von #Batteriespeicher​n pro Inbetriebnahmejahr von Unternehmen in Deutschland mit Stand vom 17.03.2026.
397 Datensätze ohne #Batteriespeichertechnologie herausgefiltert.
Der Datenbestand enthält unplausible Datensätze.
…

Spanne der Bruttospeicherleistung von #Batteriespeicher​n pro Inbetriebnahmejahr von Privatpersonen in Deutschland mit Stand vom 17.03.2026.
397 Datensätze ohne #Batteriespeichertechnologie herausgefiltert.
Der Datenbestand enthält unplausible Datensätze.

Zugebaute #Batteriespeicherkapazität pro Monat in #Deutschland mit Stand vom 17.03.2026.
397 Datensätze ohne #Batteriespeichertechnologie herausgefil…

The only genuine image of the 2026 annular #SolarEclipse I've seen so far - and at an extremely short wavelength of only 17 nanometers, from the Proba 2 satellite: https://proba2.sidc.be/Eclipse17February2026 (which sees the solar corona in emission, so the Sun doesn't have a sharply defined edge).

A the press conference #ArtemisII launch after the WDR went so well - see also https://www.nasa.gov/blogs/missions/2026/02/19/nasa-begins-artemis-ii-launch-pad-ops-after-successful-fuel-test/ issued just after it had ended - but this will not be confirmed before the Flight Readiness Review late next week.

Ground penetrating radar observations of ancient large-scale deltaic structures in Jezero crater, #Mars: https://www.science.org/doi/10.1126/sciadv.adz6095 -> Perseverance’s radar revealed ancient subsurface river delta on Mars: https://arstechnica.com/science/2026/03/perseverances-radar-revealed-ancient-subsurface-river-delta-on-mars/ - there may be a river delta hidden under the obvious delta in a Martian crater.

Anzahl von #Stromspeichern als #Notstromaggregate in #Deutschland mit Stand vom 17.03.2026.
3125 nicht aktive und 24 Speicher ohne Inbetriebnahmedatum wurden ausgefiltert. Ein…

Experimental evidence for granular shear-flow instability in the Epstein regime: #planets - a turbulent story: https://mediarelations.unibe.ch/media_releases/2026/media_releases_2026/evolution_of_planets/index_eng.html

The #ArtemisII stack arrived back at the pad today, with a launch on April 1st (Europe: April 2nd) still a possibility: https://www.nasa.gov/blogs/missions/2026/03/20/nasas-artemis-ii-rocket-arrives-at-launch-pad-39b/ and https://www.esa.int/ESA_Multimedia/Images/2026/03/Artemis_II_rolls_again and many more roll-out pictures in https://www.flickr.com/photos/nasahqphoto/albums/72177720332614865/

📰 Mit Deiner Hilfe teile ich täglich #Forschungserkenntnisse und Neuigkeiten, die uns u. a. vor gesundheitlichen und finanziellen Risiken warnen und Fortschritte in #Klimaanpassung, #Energiewende

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#Stromspeicherkapazitäten je #Speichertechnologie in #Deutschland mit Stand vom 17.03.2026.
Betrachtet werden Datensätze mit Betriebsstatus „aktiv“ und vorhan…

🍮 Wissen zum Nachtisch: 🍨
Retröt: #Klimaleugner nutzen gezielte Taktiken, um #Wissenschaft zu diskreditieren und Bürger zu täuschen.
Ihre 5 Vorgehensweisen können mit dem sogenannten #FLICC

Die Tricks der Klimaleugner oder: Techniken der Wissenschaftsleugnung (F-L-I-C-C)
Die 5 Tricks der Wissenschaftsverweigerer. Entdecke die Techniken der Klimaleugner und das F-L-I-C-C-Modell. Was sind die rhetorischen Taktiken in der Klimawandeldebatte?

#Bruttospeicherleistung je #Speichertechnologie in #Deutschland mit Stand vom 17.03.2026.
Betrachtet werden Datensätze mit Betriebsstatus „aktiv“ und vorhandenem Inb…

Neue Inbetriebnahmen von #Stromspeicher​n je #Batterietechnologie in #Deutschland mit Stand vom 17.03.2026.
Betrachtet werden Datensätze mit Betriebsstatus „aktiv“ und vorhan…

"The most recent orbital computations make it increasingly likely that the object [the new #Kreutz comet MAPS] is a fragment of one of the comets observed by Ammianus Marcellinus in AD 363, thereby strengthening evidence in support of the contact-binary hypothesis of the Kreutz system," writes Zdenek Sekanina in https://arxiv.org/abs/2602.17626: "In this context, the comet is the only second-generation fragment of Aristotle's comet that we are aware of to appear after the 12th century. It does not look like a major fragment, but rather like an outlying fragment of a much larger sungrazer."

#Speicherkapazität der #Batteriespeicher in #Deutschland je Netzanschlussebene ab 2012 mit Stand vom 17.03.2026.
Betrachtet werden Datensätze mit Betriebsstatus „aktiv“…

"The #ArtemisII wet dress rehearsal ended today at 10:16 p.m., concluding as planned at T-29 seconds in the countdown."

JWST Discovers the Vertical Structure of #Uranus' Ionosphere: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL119304 -> Webb maps the mysterious upper atmosphere of Uranus: https://esawebb.org/news/weic2602/ - Webb provides the first vertical view of the planet’s ionosphere, revealing auroras shaped by its tilted magnetic field.

Weniger #Plastikmüll:
Man möchte #Plastik vermeiden und überlegt, auf feste #Seife umzusteigen, aber wie hygienisch ist das? 🤔 Kann man über die Seife

Bad-Mythos: "Seifenstücke sind unhygienisch" - Faktencheck zur plastikfreien Alternative
Ist feste Seife unhygienisch? Faktencheck, wie sicher Seifenstücke wirklich sind und warum sie eine plastikfreie Alternative darstellen.

"After running through terminal count for the #ArtemisII wet dress rehearsal, the launch team paused the clock at T-33 seconds in the countdown," says https://www.nasa.gov/blogs/missions/2026/02/19/live-artemis-ii-wet-dress-rehearsal-coverage/: "Teams are now reconfiguring and replenishing the liquid hydrogen and liquid oxygen systems, in order to recycle back to the T-10 minute mark and perform another run of terminal count. [...] The entire recycle process lasts approximately 60 to 90 minutes."

Measurement of a lithium plume from the uncontrolled #reentry of a Falcon 9: https://www.nature.com/articles/s43247-025-03154-8 -> SpaceX rocket fireball linked to plume of polluting lithium: https://www.bbc.com/news/articles/cpd8z4eqlxno

45 minutes til the simulated #ArtemisII launch, and according to https://www.youtube.com/watch?v=-KYhqePsm38 and https://www.nasa.gov/blogs/missions/2026/02/19/live-artemis-ii-wet-dress-rehearsal-coverage/ the 2ns wet dress rehearsal is going to plan. How the outcome will be reported: https://www.nasa.gov/news-release/nasa-to-provide-coverage-of-artemis-ii-wet-dress-rehearsal/

Juno's high-spatial-resolution ultraviolet observations of Ganymede's auroral patches - constraints on the magnetospheric source region: #Ganymede and Earth: https://www.missionjuno.swri.edu/news/university-of-liege-scientists-reveal-similarities

#Starliner Propulsion System Anomalies during the Crewed Flight Test - Investigation Report: https://www.nasa.gov/wp-content/uploads/2026/02/nasa-report-with-redactions-021926.pdf -> Agency leaders are discussing the findings of investigations into the 2024 crewed test flight of Boeing Starliner to the International Space Station: https://www.youtube.com/watch?v=geneWmI9ZMY -> NASA Releases Report on Starliner Crewed Flight Test Investigation: https://www.nasa.gov/news-release/nasa-releases-report-on-starliner-crewed-flight-test-investigation/

HOLISMOKES XIX - SN 2025wny at z=2, the first strongly lensed superluminous supernova / XX - Lens models of binary lens galaxies with five images of Supernova Winny: #supernova: https://www.tum.de/en/news-and-events/all-news/press-releases/details/measuring-the-expansion-of-the-universe-with-cosmic-fireworks - measuring the expansion of the universe with cosmic fireworks.

Tracking the Evolution of Plasma Instabilities from the Prominence–Corona Transition Region into Interplanetary Space with Total Solar Eclipse and PSP/WISPR White Light Images: #corona: https://www.hawaii.edu/news/2026/02/17/eclipse-research-suns-corona/

Detection of a giant #flare displaying quasi-periodic pulsations from a pre-main-sequence M star by the Next Generation Transit Survey: https://academic.oup.com/mnras/article/482/4/5553/5224549?login=false -> Weathering a Stellar Temper Tantrum - How space weather complicates exoplanet habitability: https://astrobites.org/2026/02/16/stellar-temper-tantrum/

A Physics Informed Neural Network for Deriving MHD State Vectors from Global Active Regions Observations: #SpaceWeather: https://www.swri.org/newsroom/press-releases/new-research-takes-first-step-toward-advance-warnings-of-space-weather

Caltech astrophysicist fatally shot on porch of his rural SoCal home: #Grillmair was a specialist for #TidalStreams of #galaxies as his publications (as first author) listed in https://ui.adsabs.harvard.edu/search/q= first_author:"Grillmair"&sort=date desc, bibcode desc&p_=0 show.

Theory of striped dynamic spectra of the #CrabPulsar high-frequency interpulse: https://www.cambridge.org/core/journals/journal-of-plasma-physics/article/theory-of-striped-dynamic-spectra-of-the-crab-pulsar-highfrequency-interpulse/66FDEA9FA0464343A7EAA1E2EFF44A29 -> Study reveals cosmic tug-of-war behind the Crab Pulsar’s zebra stripes: https://news.ku.edu/news/article/study-reveals-cosmic-tug-of-war-behind-the-crab-pulsars-zebra-stripes

Today it took Michael Jäger and Gerald Rhemann a 12-inch telescope and 27 minutes of total exposure time to show #comet C/2025 R3 (PANSTARRS) this nicely: https://www.facebook.com/photo/?fbid=2382646772252141 - but if it stays the course (brightness-wise speaking) it could be quite impressive for much smaller gear as well as the human eye just a month from now.

A rubbish challenge: how do we dump space junk? Modern life depends on space-based infrastructure, but there’s a lot of junk orbiting alongside working spacecraft. Katherine Courtney and Alice Gorman talk to Margaret Harris about the danger of #SpaceDebris – and what we need to do about it: https://physicsworld.com/a/a-rubbish-challenge-how-do-we-dump-space-junk/ (looong).

A super long #NovayaZemlya #mirage phenomenon at #sunset in real-time: https://www.youtube.com/watch?v=98cU4zjmSbs with stills in https://spaceweathergallery2.com/indiv_upload.php?upload_id=231610 - the Sun was still visible when more than 3° below the geometrical horizon!

Confirming Nunki as the closest #CoreCollapse progenitor candidate to the Sun: https://arxiv.org/abs/2603.17011 -> it's a pair of 6 M_Sun stars at 69 parsec that will merge into a 10 M_Sun star and thus end as a supernova.

The dramatic transition of the extreme Red #Supergiant WOH G64 to a Yellow Hypergiant: https://arxiv.org/abs/2411.19329 - this 2024 paper, already mentioned by me in connection with other observations of that star in https://skyweek.wordpress.com/2024/11/24/allgemeines-live-blog-ab-dem-24-11-2024/ ("Die enge zirkumstellare Umgebung des Roten Überriesen WOH G64 ..."), has now been formally published: https://www.nature.com/articles/s41550-026-02789-7.epdf?sharing_token=7UR_XvTAZerqnMHPRyA0LtRgN0jAjWel9jnR3ZoTv0N7FejDObMF3AkHA10E71tuouxDX6yP8bM1QCFKGVVZLl8bT37LMadR8u4ukhACilFI60-Zxl0e00Bc0v3qXkG29yIQr7uTE0sd644q7We4d6ay5Tblhxc-UABROlAnuDs=

Distinct Rotational Evolution of Giant Planets and Brown Dwarf Companions: #exoplanet spins confirms long-predicted relationship between planetary mass and rotation: https://keckobservatory.org/kpic-spin-survey/ with https://www.dropbox.com/scl/fo/w5f4ntav4pybpale8c6p6/ANbPpoQxnCEIG2i-0vL5Ll8?rlkey=cxblu3u2n3ovocew0qch46opt&e=1&st=fgpk8v3u&dl=0

Probing the limits of #habitability - a catalogue of rocky exoplanets in the habitable zone: https://academic.oup.com/mnras/article/547/3/stag028/8526432?login=false -> The best places to look for alien life: https://ras.ac.uk/news-and-press/research-highlights/best-places-look-alien-life-scientists-identify-45-earth-worlds - scientists identify 45 Earth-like worlds to explore for a 'Project Hail Mary'.

Cenozoic evolution of earth’s strongest geoid low illuminates mantle dynamics beneath #Antarctica: https://www.nature.com/articles/s41598-025-28606-1 -> Beneath Antarctica - the deep-time story behind Earth’s largest “gravity low”: https://www.ipgp.fr/en/news-and-agenda/news/beneath-antarctica-the-deep-time-story-behind-earths-largest-gravity-low/ -> Antarctica’s ‘Gravity Hole’ Has Been Quietly Growing Stronger: https://gizmodo.com/antarcticas-gravity-hole-has-been-quietly-growing-stronger-2000722955 - scientists aren't fully sure what this means for Antarctica's future, however.

An animation of the antumbra from space during yesterday's #SolarEclipse: https://scicomm.xyz/@AstroDave/116087138815117726 - see also https://www.facebook.com/watch/?v=881466661392738 and https://bsky.app/profile/youstorm.bsky.social/post/3mf4vgedthc2p for animations from another position.

JWST Reveals a Candidate #JellyfishGalaxy at z = 1.156: https://iopscience.iop.org/article/10.3847/1538-4357/ae3824 -> Scientists observe distant jellyfish galaxy for first time: https://uwaterloo.ca/news/media/scientists-observe-distant-jellyfish-galaxy-first-time - new astronomical find is 8.5 billion years old and reshapes our understanding of early cosmic evolution.

ALMA and JWST Identification of Faint Dusty Star-forming Galaxies up to z ∼ 8 and Their Connection with Other Galaxy Populations: #galaxies almost 13 billion years old, helping to revise the history of the universe: https://www.umass.edu/news/article/international-team-astronomers-led-umass-amherst-may-have-just-found-one-missing-links

The #LOFAR Two-metre Sky Survey - VII. Third Data Release: https://arxiv.org/abs/2602.15949 -> Largest Ever Radio Sky Survey Maps the Universe in Unprecedented Detail: https://www.ru.nl/en/research/research-news/largest-ever-radio-sky-survey-maps-the-universe-in-unprecedented-detail (see the ALT text for what the three sample images show).

The #SolarEclipse today from space: https://mastodon.social/@PlanetariumBochum/116087072853257668 - images of the ring from the ground aren't in yet; I've heard that Mirny was clouded out but that they wanted to get someting at Concordia.

Candidate Dark Galaxy-2 - Validation and Analysis of an Almost Dark #Galaxy in the Perseus Cluster: https://iopscience.iop.org/article/10.3847/2041-8213/adddab/meta -> NASA’s Hubble Identifies One of Darkest Known Galaxies: https://science.nasa.gov/missions/hubble/nasas-hubble-identifies-one-of-darkest-known-galaxies/

A second-generation star in a relic dwarf galaxy: #Star Discovered Inside Ancient Relic Dwarf Galaxy: https://noirlab.edu/public/news/noirlab2607/ - the star is the first unambiguous example of chemical enrichment by the first stars in the Universe within a primordial environment.

The increasingly dominant role of climate change on #LengthOfDay variations: https://www.pnas.org/doi/10.1073/pnas.2406930121 (and a newer paper, stupidly paywalled) -> Climate change slows Earth's spin - day lengthening unprecedented in 3.6 million years: https://www.univie.ac.at/en/news/detail/climate-change-slows-earths-spin-day-lengthening-unprecedented-in-36-million-years and https://baug.ethz.ch/en/news-and-events/news/2026/03/climate-change-slows-earths-spin-day-lengthening-unprecedented-in-3-point-6-million-years.html

0.33g mitigates muscle atrophy while 0.67g preserves muscle function and myofiber type composition in mice during #spaceflight: https://www.science.org/doi/10.1126/sciadv.aed2258 -> New Research on Muscle Loss Suggests Humans Will Really Suffer on Mars: https://gizmodo.com/mars-doesnt-have-enough-gravity-to-keep-humans-healthy-study-suggests-2000733286

A second #LPSC NASA briefing today dealt mostly with planetary science funding details: https://www.youtube.com/watch?v=N8-enBzNwlo

Exploring the Interior Structure of (16) Psyche Through Basin-Scale Collisions: #Psyche: https://news.arizona.edu/news/large-craters-offer-clues-origin-asteroid-16-psyche

A Galactic Transformation - Understanding the SMC’s Structural and Kinematic Disequilibrium: #SmallMagellanicCloud

Dynamical Origin of (469219) Kamo‘oalewa of Tianwen-2 Mission from the Main Belt - ν6 Secular Resonance, Flora Family or 3:1 Resonance with Jupiter: #Tianwen2 Mission: http://english.pmo.cas.cn/newsroom/news/202603/t20260317_1152750.html and https://www.chinadaily.com.cn/a/202603/17/WS69b8af2da310d6866eb3e309.html

Preliminary Nucleus Size Estimate for #Kreutz Sungrazer C/2026 A1 (MAPS): https://iopscience.iop.org/article/10.3847/2515-5172/ae5220 -> "JWST imagery of the approaching Kreutz sungrazer C/2026 A1 (MAPS) appears sufficient to distinguish the comet’s nucleus from the surrounding dust. Coma model fitting indicates the morphology is compatible with a ∼0.4 km diameter nucleus—likely larger than those of the minor Kreutz fragments routinely discovered with coronagraphs, and comparable to or slightly smaller than that of C/2011 W3 (Lovejoy). However, since C/2026 A1 is the only Kreutz sungrazer whose nucleus has been directly observed, these comparisons should be treated with caution" -> https://groups.io/g/comets-ml/message/35035 / https://scicomm.xyz/@qicheng@cometary.org/116245251072721081

Low thermal inertia of carbonaceous asteroid #Bennu driven by cracks observed in returned samples: https://www.nature.com/articles/s41467-026-68505-1 -> Asteroid Bennu’s Rugged Surface Baffled NASA, We Finally Know Why: https://science.nasa.gov/missions/osiris-rex/asteroid-bennus-rugged-surface-baffled-nasa-we-finally-know-why/ and https://www.nasa.gov/image-article/solving-asteroid-bennus-mysteries/

A rare daylight #fireball coming with a loud bang was seen and heard Tuesday morning over the U.S. and Ohio in particular: https://www.youtube.com/watch?v=dHBjApk3d6w - see https://skyweek.wordpress.com/2026/03/12/allgemeines-live-blog-ab-dem-12-marz-2026/ for links to many more reports. And https://ares.jsc.nasa.gov/meteorite-falls/events/windfall-oh says: "Signatures of falling meteorites are seen in data from three weather radars [...] NASA Meteoroid Environment Office finds that this was a 2m diameter object weighing around 6 metric tons - more of a small asteroid than a large meteoroid. [...] There are meteorites on the ground around Windfall, OH towards River Styx, OH."

A scary milestone was reached on Tuesday when for the first time more than 10,000 #Starlink satellites were in LEO simultaneously: https://spaceflightnow.com/2026/03/16/live-coverage-spacex-to-launch-25-starlink-satellites-on-falcon-9-rocket-from-california/ - see https://www.planet4589.org/space/con/star/stats.html for the hard numbers, namely 10,049 satelltes in orbit (with 10,039 of them working of which 7903 are in operational orbits) out of 11,558 launched in total since 2018.

Sequential Fragmentation of C/2025 K1 (ATLAS) After Its Near-Sun Passage: #comet breaking up: https://esahubble.org/news/heic2606/ and https://science.nasa.gov/missions/hubble/nasas-hubble-unexpectedly-catches-comet-breaking-up/ (the paper as submitted had been discussed by me last November in https://skyweek.wordpress.com/2025/11/26/heute-beginnt-die-tagung-des-esa-ministerrats/ - "So sah Hubble den Kometen C/2025 K1 (ATLAS) zerbrechen").

The #SolsrEclipse live from South Africa: https://www.youtube.com/live/DfwhUn3OKIs