Did you miss Raúl Infante ( @cefca-oaj.bsky.social ) talking yesterday about #ARRAKIHS on #LaCuriosidadSalvoAlGato on @aragontv.bsky.social? 📺
Here’s the link to the program — he appears starting at 16:43 👇
alacarta.aragontelevision.es/programas/la...
The penguin has been found… and it brought great news! 🐧📚
The ARRAKIHS Instrument iPDR data package has been officially delivered on time! ⚡️
Congratulations to everyone who contributed to this amazing work!
#NihilistPenguin #iPDR #ARRAKIHS #Instrument
✨How many galaxies should #ARRAKIHS observe?
Simulations suggest ~80–84 gives a strong chance of capturing the diverse range of stellar halos needed for significant science, a smart balance of ambition and feasibility 🚀🌌
🔗 arrakihs-mission.eu/2025/12/19/h...
Fin de l’ #astronomie_spatiale
#XuntianSpaceTelescope #SPHEREx #ARRAKIHS
The impact of #satellite_trails on #HubbleSpaceTelescope observations
www.nature.com/articles/s41...
#Satellite_megaconstellations will threaten #space -based #astronomy
www.nature.com/articles/s41...
#DidierSchlacther #Poisson
El cielo ya no es cielo: es una autopista de satélites brillantes.
ARRAKIHS intenta hacer ciencia fina en medio del tráfico.
🛰️🌌💭 #TecnoTimes #ARRAKIHS #CieloOscuro #Astronomía #Espacio. tecnotimes.net/arrakihs-y-e...
1/3 #Arrakihs #CosmicVision ✨☄️
One of Arrakihs’ two binocular telescope assemblies.
#Arrakihs will image more than 75 nearby Milky Way-like galaxies & their surroundings, using two innovative, near-identical binocular telescope assemblies.
It will carry out a survey at visible & infrared wavelengths, far exceeding what's currently possible from ground-based telescopes.
2/ #CM25 🔭
A 4 x 4 collage of ground-based images of nearby galaxy halos with stellar streams. Arrakihs will observe stellar streams 10 times fainter than these halo features.
In 2022, #Arrakihs was selected as a fast mission under #CosmicVision.
By imaging Milky Way-type galaxies in the nearby Universe, Arrakihs will provide important measurements to address key questions in galaxy formation theory.
1/ #CM25 🔭
Gas density of the same subhalo across the different models during their infall to the host halo. Each column represents a different model, while each row indicates the same infall stage: (a) first snapshot at a distance to the host lower than , (b) at , (c) during the first apocenter, and (d) during the second infall, slightly before the second pericenter. From the time evolution we can distinguish how gas is stripped during infall and how virial radius is decreasing due to tidal stripping. Efficiency of stripping mechanisms is highly sensitive to the model.
When small galaxies meet big ones 💫
The #AGORA project explores how dwarf satellite galaxies stop forming stars , a process called “quenching”. What #ARRAKIHS will help us uncover.
📌 Ramón Rodríguez Cardoso (@ucm.es, GMV)
🔗 goo.su/R0s4d
Last Friday, some of our @ifca.es researchers took part in the #ERN2025 in Santander.
They were with the little ones, doing #ARRAKIHS puzzles as part of the science challenge 🧩
Thank you for your collaboration! 🙌🏼
@univcantabria.bsky.social @csic.es @csicdivulga.bsky.social
A map of the sky with sample galaxies, not the final list, but an example of how scientists build a clean selection for study.
A map of the sky!
🟢 Green = higher sensitivity
🔵 Blue = harder to see faint details
🔴 Red dots = sample galaxies (not the final list, but an example of the #ARRAKIHS selection process).
Credit: J. Román (@ucm.es)
ARRAKIHS prepares for orbit! 🛰️
A technical training campaign at Javalambre Observatory ( #CEFCA ) tested the iSIM-170 camera, a key instrument for the mission to study dark matter from space.
🔗 bit.ly/45AxiOa
#ARRAKIHS #ESA #DarkMatter #iSIM170 #Astrophysics #OAJ
How faint can we go? With #ARRAKIHS + VIS2, we can detect #galaxy features as dim as 31 mag/arcsec² 🌌
Using mock images, we subtracted stars, cleaned backgrounds, and applied astnoisechisel to extract even the faintest signals.
Credit: Helena Domínguez Sánchez
📻🎙️ If you missed it live, here it is: rtve.es/play/audios/...
(The #interview starts at minute 29)
#ARRAKIHS #radio #rne #neudc
🛰️ How will #ARRAKIHS reveal the invisible #universe?
Hugo Rosado (DEIMOS), Mission Planning Coordinator, explains how the mission will observe faint galaxies and uncover the structure of #darkmatter once in orbit.
🎥 youtu.be/a3IbBdOHY04
#ESA #telescope #spacemission
ARRAKIHS consortium members at the IIDAR workshop held at Satlantis.
Great week at #SATLANTIS for the #ARRAKIHS Instrument Intermediate Design and Analyses Review (IIDAR) workshop 🛰️
Key step ahead of PDR, with progress, collaboration & good conversations in Leioa.
Thanks to all involved!🤗
🔗 www.arrakihs-mission.eu/2025/06/13/a...
@esa.int #SpaceMission #workshop
🌌¿España en Dune? ARRAKIHS apunta al corazón del universo…📡sin gusanos, pero con puntería científica.
#ARRAKIHS #MateriaOscura #ExploraciónEspacial #ESA elektromodel.com/la-lanza-esp...
M101, Pinwheel Galaxy Larger than our Milky Way and bursting with star-forming regions—like cosmic fireworks in deep space.
M42, Orion Nebula A stellar nursery just 1,344 light-years away, where hundreds of new stars are being born right now.
M81, Bode’s Galaxy A beautiful spiral glowing with the energy of a supermassive black hole—70 million times the mass of our Sun.
💫 First observations with the Ground Demonstrator (OGD) at the Javalambre Astrophysical Observatory! 💫
1️⃣ M101, Pinwheel Galaxy
2️⃣ M42, Orion Nebula
3️⃣ M81, Bode’s Galaxy
#astrophysics #groundobservations #ARRAKIHS #OGD
@cefca-oaj.bsky.social #Satlantis @ifca.es
#space #mission
Desde Teruel al espacio:
La misión #ARRAKIHS, liderada por 🇪🇸 y avalada por la @esa.int , arranca su investigación en el Observatorio de Javalambre.
🔭 Ciencia española mirando al cosmos
👉 ondaaragonesa.info/arrakihs-mis...
@cefca-oaj.bsky.social
#MateriaOscura #Astronomía #ESA #IFCA #Satlantis #OAJ
🚀 #ARRAKIHS begins its scientific prepararion at the Javalambre Observatory!
A ground-based replica of the space camera is now operational—testing key tools and strategies ahead of launch.
🔗 goo.su/jB9Pvt
@ifca.es @cefca-oaj.bsky.social #Satlantis #groundobservations #galaxy #space #mission
🚀@ARRAKIHS ha comenzado a hacer ciencia desde el #Observatorio #Astrofísico de #Javalambre en #Teruel
Patricio Vielva, director del @IFCA_CSIC_UC y Biuse Casaponsa, coordinadora oficina de proyecto de #ARRAKIHS han sido los invitados de lujo a la presentación ante los medios.
#Cienciaparatodos
The 4th ARRAKIHS Consortium meeting took place at @univie.ac.at!
73 team members met in person to advance #mission planning and scientific goals. 🚀
🔗 www.arrakihs-mission.eu/2025/05/02/4...
#ARRAKIHS #darkmatter #spacemission #consortium #meeting #vienna
We joined the #iconicobjects trend with the iSIM-170 camera, developed by #Satlantis and key to the #ARRAKIHS mission. It’s designed to reveal the faintest light in the universe using a unique binocular #telescope.
📦 Would you collect it? 👀
#ai #darkmatter
A few days ago, Santi Roca-Fàbrega (Lund University), our #Cosmological Simulations WP Coordinator, participated in #SpaceResearchersSweden2025 in #Kiruna, where he presented #ARRAKIHS to the scientific community and representatives from the #SwedishSpaceAgency.
Denis Erkal (@derkal.bsky.social), one of our contributors, is an expert in galaxy modeling at the @uniofsurrey.bsky.social
He has given a talk focused on the Milky Way’s formation and dark matter properties 🌌
#ARRAKIHS #GalaxyModels #DarkMatter #MilkyWay
ARRAKIHS at #CosmosClub! 🚀
Our colleague Rebekka Coles-Bieri (UZH) introduced the #mission to a broader audience, sparking discussion and engagement! ✨🔭
@raumschiff.bsky.social
#ARRAKIHS #DarkMatter #Cosmos #SXS #ESA #spacemission
Because of this #internationalwomensday, three of the #ARRAKIHS women share with us their stories, their dreams…
The universe has no limits. Neither do we ✨💜
👤Rebekka Coles-Bieri (UZH), Laura Burgos (Satlantis) and Paola Kögl (KOEGL Space)
#8M #IWD2025 #darkmatter
▶️https://youtu.be/IhKz1QhA5VQ
Getting ready before space‼️
In the coming weeks, we're going to #install a ground-based #demonstrator camera at #OAJ (@cefca-oaj.bsky.social).
Built by SATLANTIS and acquired by @ifca.es, this #instrument will help refine #ARRAKIHS before launch🚀
➡️https://goo.su/y3QN9
