Response to the paper Borlaff et al. 2025 published in Nature
The following is an official statement issued in response to the recent paper by Borlaff et al. December 5, 2025 The ARRAKIHS Mission Consortium (AMC) to report a significant error in the paper by Borlaff et al. published in December 3 and widely covered through Nature’s press release. The paper…
A New AI Tool to Map the Outskirts of Galaxies
Determining the size of a galaxy requires identifying the point at which its light distribution shows a clear decline, a feature often referred to as its truncation. This boundary offers valuable information about how galaxies form and evolve. Traditionally, measuring this edge has been a time-consuming task that requires detailed visual…
A major boost for ARRAKIHS: The HARKONENS Project
We’re thrilled to announce a major milestone for the ARRAKIHS Project. The HARKONENS Project is led by Santi Roca Fábrega (Lund University, Sweden) in close collaboration with Corentin Cadiou (IAP, France), has been awarded an extraordinary 234 million CPU hours on the EuroHPC supercomputing infrastructure. Many members of the COS team are actively involved,…
ARRAKIHS Presented at the Spanish Space Agency (AEE)
The ARRAKIHS mission was officially presented this week at the headquarters of the Spanish Space Agency (AEE), in an event that brought together representatives from Spain’s scientific and industrial space community. The presentation, delivered by Professor Rafael Guzmán (IFCA, CSIC-UC), Principal Investigator of ARRAKIHS, offered an overview of the mission’s…
ARRAKIHS begins its research at the Javalambre Astrophysical Observatory
A hands-on training campaign with the iSIM-170 camera brings the ARRAKIHS mission closer to readiness, validating systems and protocols ahead of launch. As part of preparations for ESA’s ARRAKIHS mission, team members recently completed a key technical training campaign at the Javalambre Astrophysical Observatory (OAJ) in Spain. The purpose…
ARRAKIHS IIDAR Workshop at Satlantis
From June 2nd to 6th, the ARRAKIHS mission took an important step forward with the Instrument Intermediate Design and Analyses Review (IIDAR), hosted by Satlantis at its headquarters in Leioa, Basque Country (Spain). This technical workshop marked a key milestone ahead of the Preliminary Design Review (PDR), allowing the consortium…
ARRAKIHS begins its research at the Javalambre Astrophysical Observatory
The European Space Agency (ESA) mission, led by Spain, will provide key insights into the behavior of dark matter. The ARRAKIHS space mission, selected by the European Space Agency (ESA) and led by Spain, has begun its scientific preparation phase at the Javalambre Astrophysical Observatory (OAJ) in the province of…
4th ARRAKIHS Consortium Meeting, in Vienna, Austria
From 23rd to 25th April 2025, the ARRAKIHS Consortium held its 4th Consortium Meeting in Vienna, hosted at the Geozentrum of the University Centre Althanstrasse. The event brought together 73 contributors from ARRAKIHS mission to share updates, coordinate ongoing work, and define upcoming priorities as the mission advances through key…
Euclid-ARRAKIHS ISSI project
Euclid and ARRAKIHS join forces to explore the extremely low surface brightness Universe https://youtu.be/YG3_hYgS3xY A series of three ISSI (International Space Science Institute) meetings between experts from ESA’s Euclid and ARRAKIHS space missions aims to address shared technical challenges, develop advanced image processing techniques, and evaluate the synergy between the…
ARRAKIHS surpasses the Payload Phase A in record time
https://www.youtube.com/watch?v=VOhkInglc20 The mission has successfully completed one of the critical phases and begins to work on central instrument to study dark matter. The European Space Agency (ESA) space mission ARRAKIHS (Analysis of Resolved Remnants of Accreted galaxies as a Key Instrument for Halo Surveys) reached an important milestone in March:…