Prof. Josep M. Trigo-Rodríguez

CHI #ORIÓNIDA #SPMN081225C SOBRE EL INTERIOR DE #VALÈNCIA HOY a las 1h35m48s TUC (2h35 CET). Captado por Nahum Méndez @geologoenapuros.bsky.social desde Daya Vieja, #Alicante/#Alacant. Este enjambre produce bólidos muy vistosos, con brillantes fulguraciones. Listado
🔖 www.ice.csic.es/news/citizen...

Interstellar Object 3I/ATLAS Mystery Scientists are studying interstellar visitor 3I/ATLAS after spotting possible ice volcano activity near the Sun.

More media echoing worldwide our research on #3IATLAS. Now in @euroweeklynews.com:

euroweeklynews.com/2025/12/03/i...

PRECIOSA ETA #HÍDRIDA #SPMN081225O REGISTRADA SOBRE LA PROVINCIA DE #HUELVA HOY a las 5h02m50s TUC (6h02 CET). Así la captó Miguel Andrés García @meteomeda.bsky.social desde Sanlúcar de Barrameda, #Cádiz. Otro precioso evento al listado del @ice-csic.bsky.social: 🤩🌠
➡️ www.ice.csic.es/news/citizen...

SwRI researchers use PUNCH to track interstellar comet 3I/ATLAS | Southwest Research Institute SwRI-led spacecraft provides vital data while 3I/ATLAS is too close to the Sun for others to observe

Here's a little more info on the @swri.org team that tracked 3I/ATLAS using @punch-mission.bsky.social data! ☀️🔭🧪🛰️🚀

Bracket for "BSky Planetary Science Image of 2025" contest, featuring small icons of 16 images grouped into four quarter-finals. There are semi-finalists and finalist placeholders against a lunar surface backdrop.

📣 Hey folks, it's time to vote on your favourite #planetaryScience image of 2025! 🧪⚛️🚀🛰️☄️🪐🌔

Follow this 🧵 not to miss a vote!

We'll have 4 quarter-finals to determine the semi-finalists, from which we'll decide the finalists and, ultimately, the winner.

Desvelada la naturaleza del cometa interestelar 3I/ATLAS Un nuevo estudio del objeto interestelar 3I/ATLAS explica las incógnitas que extrañaban a los científicos, su naturaleza y el comportamiento de su coma.

Tenemos nueva evidencia sobre la naturaleza cometaria de 3I/ATLAS gracias al equipo de investigación de @joseptrigo.bsky.social (@ice-csic.bsky.social @ieec.cat): 

ENTREVISTA EN @elmundoes.bsky.social en la que nuestro coordinador desmonta la naturaleza artificial del #3IATLAS. Diversos trabajos apuntan a la naturaleza carbonácea del cometa interestelar, similar a los cuerpos transneptunianos, pero realmente prístino y reactivo:
www.elmundo.es/ciencia-y-sa...

Interstellar Object 3I/ATLAS Mystery Scientists are studying interstellar visitor 3I/ATLAS after spotting possible ice volcano activity near the Sun.

More media echoing worldwide our research on #3IATLAS. Now in @euroweeklynews.com:

euroweeklynews.com/2025/12/03/i...

Such a difficult choice! The slopes and Deimos at dawn pics are more beautiful, and a moon hovering in front of its planet is always cool, but I love the dynamism of this one! Really looks like #Perseverance is looking over its shoulder at the dust devil chasing it! #Mars #PlanetSci

Loeb’s Behavior is Reckless I’ve largely ignored Loeb for the past few weeks. When he started in on his 3I/ATLAS thing, there were plenty of mainstream media outlets willing to give his claims a wide and credulous platform, and ...

It is time to stop lies on the artificial origin of #3IATLAS, and I found this an excellent recopilation of that nonsense by Prof. Jason Wright:
sites.psu.edu/astrowright/...
Who has been really acting as a serial killer of knowledge, and science outreach?
Who is going to revert all the damage made?

EXCITING INNER COMA DETAILS IN TONIGHT IMAGE OF #3IATLAS FROM #MontsenyObservatory. Every night gaining more resolution until close approach, it helps to study the false nucleus complexity and magnitude fluctuations. Really exciting times for comet science! 😍☄️
#PlanetSci
➡️ arxiv.org/abs/2511.191...

PRECIOSA EPSILON #VIRGÍNIDA DE DICIEMBRE #SPMN061225F SOBRE #VALÈNCIA HOY a las 3h34m58s TUC (4h34 CET). A todo color la captó Nahum Méndez @geologoenapuros.bsky.social desde Daya Vieja, #Alicante/#Alacant. Pronto en el listado de bólidos @ice-csic.bsky.social: 😍🌠👇
➡️ www.ice.csic.es/news/citizen...

GRAN BÓLIDO #SPMN041225K REGISTRADO SOBRE #MARRUECOS ANOCHE a las 23h04m18s TUC. Ramón López @stargazerlanzarote.bsky.social lo captó desde #Lanzarote cruzando #Geminis y con posible radiante en las Chi Oriónidas, a espera de confirmación desde otras estaciones.
Lista www.ice.csic.es/news/citizen...

#TÁURIDA SUR #SPMN031225D REGISTRADA SOBRE LA PROVINCIA DE #GIRONA HOY a las 1h42m26s TUC (2h42 CET). La registró sobre #OsaMayor Fernando Gómez @fgs58.bsky.social desde Vallirana, #Barcelona. Pasa al listado actualizado de bólidos de @ice-csic.bsky.social csic 🤩🌠
➡️ www.ice.csic.es/news/citizen...

Interstellar object covered in 'icy volcanoes' could rewrite our understanding of how comets formed Analysis of the second confirmed interstellar comet to visit our solar system suggests that the alien body could be covered in erupting icy, volcano-like structures called cryovolcanoes. Researchers a...

"Interstellar object covered in 'icy volcanoes' could rewrite our understanding of how comets formed" #Physorg_com
➡️ phys.org/news/2025-12...
They echoed @joseptrigo.bsky.social @ice-csic.bsky.social @ieec.cat on comet #3IATLAS, emphasizing Pau Montplet @astrobreda.bsky.social #AstroMontseny image⤵️🤩

Interpretació artística de com pensem que es comporta el cometa 3I/ATLAS, en desenvolupae regions actives degut a la corrosió interna dels grans metàl•lics i sulfurs de Fe, minerals comuns a les condrites CR.

DESVETLLANT LA NATURA COMETÀRIA DEL #3IATLAS és el meu article divulgatiu a #Divulcat tot explicant els nostres descobriments sobre la seva composició i els processos químics que ocorren a aquest fascinant #cometa. Una baula perduda després d'un llarg viatge 🫠
www.enciclopedia.cat/divulcat/Des...

100,000 mph 'comet fragment' explodes in green fireball over Great Lakes, eerie videos show A fireball lit up the skies over the Great Lakes in the early hours of Sunday and was visible for hundreds of miles.

A meteor exploded over Michigan's Great Lakes in a green fireball, videos reveal. The dramatic event was likely caused by a comet fragment burning up in the atmosphere.

#space #meteor #fireball #GreatLakes

www.livescience.com/space/meteor...

AI-generated image to exemplify the onset of cryogenic activity in 3I/ATLAS, here represented during a Mars approach

PRE-PERIHELION STUDY OF #COMET #3IATLAS with our findings about its spectroscopic similitude with CR carbonaceous chondrites. Manuscript submitted for publication in which we propose it is a #TNO-like body experiencing #cryovolcanism
Now in Cornell Univ. @arxiv repository:
➡️ arxiv.org/abs/2511.19112

GRAN BÓLIDO #SPMN031225G SOBRE NOVA AQUITÀNIA, #FRANCIA HOY a las 4h28m10s TUC (5h28 CET). A >500 km lo captó Jordi Gil @jgil65.bsky.social desde Esparreguera, #Barcelona. Otro evento meteórico destacado, también detectado en forward scatter que pasa al listado:🤩🌠
🔖 www.ice.csic.es/news/citizen...

KAPPA #DRACÓNIDA DE DICIEMBRE #SPMN041225F REGISTRADA HOY SOBRE #BARCELONA a las 5h09m58s TUC (6h09 CET). Así la captó Jordi Gil @jgil65.bsky.social desde Esparreguera. Los meteoroides de este enjambre meteórico alcanzan la atmósfera a 155.000 km/h. Pasa al listado:
➡️ www.ice.csic.es/news/citizen...

Interstellar comet 3I/ATLAS is erupting in 'ice volcanoes', new images suggest Scientists have observed cryovolcanoes erupting on comet 3I/ATLAS — giving us a new clue about what's inside it.

"Interstellar comet #3IATLAS is erupting in 'ice volcanoes', new images suggest" by Patrick Pester @livescience.com
livescience.com/space/inters...
Echoing our @ice-csic.bsky.social @ieec.cat research group task to debunk the fallacies about the artificial nature of this fascinating comet
#PlanetSci

#TÁURIDA SUR #SPMN011225L REGISTRADA SOBRE EL INTERIOR DE #VALÈNCIA ANOCHE a las 22h17m32s TUC (23h17 CET). La captó Nahum Méndez @geologoenapuros.bsky.social desde Daya Vieja, #Alacant/#Alicante. Pronto en el listado actualizado de bólidos del @ice-csic.bsky.social
▶️ www.ice.csic.es/news/citizen...

🛰️El #CSIC participa en la misión de la @esa.int que estudiará el agua de la Tierra desde el espacio

🌊Lanzada este viernes, aportará datos clave para comprender mejor el ciclo del agua y los efectos del #cambioclimático

Participan @ice-csic.bsky.social e @ieec.cat 👉 tiny.cc/dbdv001

Table 1 from the linked paper, spacecraft constraints. Encounter can't be far from 1AU.

First paragraph of section 2.3, Dynamical Constraints. LPC = long period comet, DNC = dynamically new comet, ISO = interstellar object. Highlighted line is about the unlikelihood that the spacecraft will encounter an ISO.

Snodgrass et al: "Considerations on the process of target selection for the
@cometinterceptor.bsky.social
mission"
arxiv.org/abs/2511.20521

#PlanetSci #PlanetaryScience #CometInterceptorMission

ESA Member States commit to largest contributions at Ministerial The largest contributions in the history of the European Space Agency, €22.1 bn, have been approved at its Council meeting at Ministerial level in Bremen, ...

ESA's RAMSES mission is funded ! We are going to visit asteroid Apophis in 2029 :D
www.esa.int/About_Us/Cor...

#planetaryscience

Sentinel-5 debuts images of atmospheric gases Launched just a little over three months ago, Copernicus Sentinel-5A has returned its first images – including a global map of ozone, maps of nitrogen dioxide over the Middle East and South Africa, fo...

@esa.int @science.esa.int Sentinel 5A just released its first images. Extremely broad swaths of integrated column gas abundances. Very cool data!!
🔭🧪 #planetsci

www.esa.int/Applications...

Detection of triboelectric discharges during dust events on Mars - Nature The SuperCam microphone aboard the Perseverance rover captured 55 triboelectric discharges during dust events on Mars over two Martian years, providing implications for examining the planet’s surface ...

Pretty exciting news, a long-thought possibly - that dry dust storms produce enough static energy to create little lighting bolts - has been kind of observed on Mars!!
🧪🔭 #planetsci

doi.org/10.1038/s415...

Discovery of rare protist reveals previously unknown branch of eukaryotic tree of life A research team from the Faculty of Science, Charles University in Prague has discovered Solarion arienae, an extremely rare and morphologically unique unicellular eukaryote that sheds new light on ea...

Solarion is kind of fire. Immobile sun-like cells with radiating, stalked organelles called celestiomes. It has the secA gene, a bacterial protein transport gene most other eukaryotes don’t harbor (remnant from the mitochondria’s endosymbiont days). Probably more.

🧪🖥️🧬🔬

phys.org/news/2025-11...

#COMET #3IATLAS MONITORED TONIGHT from #MontsenyObservatory. The antitail keeps being the most relevant feature, but nuclear activity exhibits many active, bended jets.
Just a #comet, our research paper
➡️ arxiv.org/abs/2511.191...
Outreach article:👇
theconversation.com/desvelada-la...
#PlanetSci

Wonderful #fireball over #Catalonia today 😍👇