Observational Cosmology Group
Dark Energy Survey (DES) releases most precise look at the universe’s evolution
May 27, 2021
The Dark Energy Survey collaboration has created the largest ever maps of the distribution and shapes of galaxies, tracing both ordinary and dark matter in the universe out to a distance of more than 7 billion light years. The analysis, which includes the first three years of data from the survey, is consistent with predictions from the current best model of the universe, the standard cosmological model. Nevertheless, there remain hints from DES and other experiments that matter in the current universe is a few percent less clumpy than predicted.
Successful Start of Dark Energy Spectroscopic Instrument (DESI) Follows Record-Setting Trial Run
May 17, 2021
International collaboration aims for 3D map of the universe, unraveling of mysterious ‘dark energy'. IFAE participates in the DESI Barcelona-Madrid Regional Participation Group, made up of researchers from IFAE, ICE-CSIC, CIEMAT and IFT-UAM. The instrumental contribution to DESI of the group consisted of the design, construction and installation of the complete Guiding, Focusing and Alignment system (GFA).
Dark Energy Survey makes public catalog of nearly 700 million astronomical objects
January 14, 2021
The international collaboration releases a massive, public collection of astronomical data and calibrated images from six years of surveys. This data release is one of the largest astronomical catalogs issued to date.
Astrophysicists measure the expansion of the Universe across 11,000 million years
July 20, 2020
The Sloan Digital Sky Survey (SDSS) publishes a comprehensive analysis of the largest three-dimensional map of the Universe ever created, which fills the most significant voids of our exploration on the history of cosmos.
Euclid space telescope’s Near-Infrared instrument ready to draw a 3-D map of galaxies of the distant Universe
July 9, 2020
ESA’s Euclid mission to study more than a billion galaxies is a step closer to launch as its two instruments are now built and fully tested, including the complex near Near-Infrared Spectrometer and Photometer (NISP) instrument