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…
The AGORA High-Resolution Galaxy Simulations
The standard cosmological model, known as Lambda Cold Dark Matter (ΛCDM), predicts that structures such as galaxies form hierarchically. In this framework, larger galaxies grow by accreting smaller ones, which are the first systems to form and act as the building blocks of the Universe. However, the accretion of dwarf…
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…
Extragalactic Stellar Tidal Streams: Observations meet Simulation
Today, the prevailing model of the Universe is Lambda Cold Dark Matter (ΛCDM), which explains the evolution of the cosmos from its origin in the Big Bang to the present time. ΛCDM predicts that the universe is composed of Dark Energy (DE, 68.3%), which is responsible for the accelerating expansion…
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 and the Black Hole Universe: A new window on cosmic origins
The recently proposed Black Hole Universe (BHU) model offers a bold rethinking of our cosmic origins. Rather than beginning with a singular “Big Bang,” this theory suggests that our universe may have emerged from the interior of a black hole formed within a larger parent universe. This idea provides fresh answers to…
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…
Winner of the 11 February Quizizz
We already have the result of the quizizz celebrated for the International Day of Girls and Women in Science. Thanks a lot for your participation in this initiative. We are so glad for the amazing response, we have reached, 61 participants played with us! After reviewing the points obtained the…
Ground Testing: Defining ARRAKIHS before going to space
Location of the New camera at the Javalambre Astrophysical Observatory (Teruel) / OAJ. ARRAKIHS is taking a crucial step forward with the installation of a ground-based demonstrator camera at the Javalambre Astrophysical Observatory (OAJ) in Teruel, Spain, set to take place in the coming weeks. This new instrument will allow…