[et_pb_section fb_built=”1″ _builder_version=”4.16″ _module_preset=”default” background_image=”https:\/\/www.ieec.cat\/wp-content\/uploads\/2022\/02\/slider-comunicacio.jpg” max_height=”130px” custom_padding=”0px||0px||false|false” da_disable_devices=”off|off|off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.16″ _module_preset=”default” custom_padding=”24px||11px|||” da_disable_devices=”off|off|off” global_colors_info=”{}” da_is_popup=”off” da_exit_intent=”off” da_has_close=”on” da_alt_close=”off” da_dark_close=”off” da_not_modal=”on” da_is_singular=”off” da_with_loader=”off” da_has_shadow=”on”][et_pb_row _builder_version=”4.16″ _module_preset=”default” custom_padding=”||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_text admin_label=”Unitats de recerca” module_class=”ieec-orgs” _builder_version=”4.27.4″ _dynamic_attributes=”content” _module_preset=”default” text_font=”|700||on|||||” text_font_size=”16px” header_font=”|700|||||||” custom_margin=”||10px||false|false” header_font_size_tablet=”28px” header_font_size_phone=”26px” header_font_size_last_edited=”on|phone” global_colors_info=”{}”]@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoiY3VzdG9tX21ldGFfb3JnYW5pemFjaW9uZXMiLCJzZXR0aW5ncyI6eyJiZWZvcmUiOiIiLCJhZnRlciI6IiIsImVuYWJsZV9odG1sIjoib2ZmIn19@[\/et_pb_text][et_pb_post_title author=”off” categories=”off” comments=”off” featured_image=”off” admin_label=”T\u00edtol i data” module_class=”ieec-title” _builder_version=”4.27.4″ _module_preset=”default” title_font=”Cairo|300|||||||” title_font_size=”40px” meta_font=”||on||||||” meta_font_size=”16px” title_font_size_tablet=”35px” title_font_size_phone=”30px” title_font_size_last_edited=”on|desktop” global_colors_info=”{}”][\/et_pb_post_title][et_pb_text admin_label=”Subt\u00edtols” module_class=”ieec-summary” _builder_version=”4.27.4″ _module_preset=”default” text_font=”Source Sans Pro||on||||||” text_font_size=”24px” text_line_height=”1.1em” text_font_size_tablet=”22px” text_font_size_phone=”20px” text_font_size_last_edited=”on|phone” global_colors_info=”{}”]<\/p>\n
\u2022 The DESI (Dark Energy Spectroscopic Instrument) collaboration published a new analysis of dark energy using their first three years of collected data, which spans nearly 15 million galaxies and quasars<\/em> [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_post_title title=”off” meta=”off” module_class=”ieec-img-container” _builder_version=”4.27.2″ _module_preset=”default” custom_margin=”||0px||false|false” border_width_top=”10px” border_color_top=”#406fda” global_colors_info=”{}”][\/et_pb_post_title][et_pb_text module_class=”ieec-img-footer” _builder_version=”4.27.4″ _module_preset=”default” text_font=”||||||||” text_font_size=”15px” text_line_height=”1.1em” background_color=”rgba(64,111,218,0.15)” custom_margin=”0px||||false|false” custom_padding=”30px|20px|30px|20px|true|true” global_colors_info=”{}”]<\/p>\n DESI is installed on the Mayall Telescope, which appears in this image beneath the trails of the stars.<\/span> [\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” link_font=”|700|||on||||” global_colors_info=”{}”]<\/p>\n The fate of the universe hinges on the balance between matter and dark energy: the fundamental ingredient that drives its accelerating expansion. New results from the <\/span>Dark Energy Spectroscopic Instrument<\/span><\/a> (DESI) collaboration use the largest 3D map of our universe ever made to track dark energy\u2019s influence over the past 11 billion years. Researchers see hints that dark energy, once thought to be a \u201ccosmological constant,\u201d might be evolving over time in unexpected ways.<\/span><\/p>\n DESI is an international experiment with more than 900 researchers from over 70 institutions around the world and is managed by the U.S. Department of Energy\u2019s Lawrence Berkeley National Laboratory (Berkeley Lab). The collaboration shared their findings today in <\/span>multiple papers<\/span><\/a> that will be posted on the online repository arXiv and in a presentation at the <\/span>American Physical Society\u2019s Global Physics Summit<\/span><\/a> in Anaheim, California.<\/span><\/p>\n \u201cThe obtained results are very interesting\u201d, says Andreu Font-Ribera, a scientist at the Institut de F\u00edsica d\u2019Altes Energies (IFAE) and a member of the DESI team that has developed this study. \u201cIt seems that we are on the verge of a change of paradigm for our models of the Universe, and this is very exciting\u201d.<\/i><\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” link_font=”|700|||on||||” locked=”off” global_colors_info=”{}”]<\/p>\n Taken alone, DESI\u2019s data are consistent with our standard model of the universe: Lambda CDM (where CDM is cold dark matter and lambda represents the simplest case of dark energy, where it acts as a cosmological constant). However, when paired with other measurements, there are mounting indications that the impact of dark energy may be weakening over time and other models may be a better fit. Those other measurements include the light leftover from the dawn of the universe (the cosmic microwave background or CMB), exploding stars (supernovae), and how light from distant galaxies is warped by gravity (weak lensing).<\/span><\/p>\n \u201cIn my opinion, it is still too early to claim categorically that we have discovered an evolving dark energy\u201d, says Eusebio S\u00e1nchez, scientific researcher at CIEMAT, who has participated in the data analysis. \u201cHowever, the fact that different independent projects are observing similar results make this situation especially interesting\u201d.<\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.16″ _module_preset=”default” locked=”off” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/www.ieec.cat\/wp-content\/uploads\/2025\/03\/image4.jpg” _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”||0px|||” global_colors_info=”{}”][\/et_pb_image][et_pb_text module_class=”ieec-img-footer” _builder_version=”4.27.4″ _module_preset=”default” text_font=”||||||||” text_font_size=”15px” text_line_height=”1.1em” background_color=”rgba(64,111,218,0.15)” min_height=”76px” custom_margin=”0px||||false|false” custom_padding=”30px|20px|30px|20px|true|true” global_colors_info=”{}”]<\/p>\n Detailed description of the behavior of dark energy, specifically how its density varies as space expands. [\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” link_font=”|700|||on||||” global_colors_info=”{}”]<\/p>\n So far, the preference for an evolving dark energy has not risen to \u201c5 sigma,\u201d the gold standard in physics that represents the threshold for a discovery. However, different combinations of DESI data with the CMB, weak lensing, and supernovae sets range from 2.8 to 4.2 sigma. (A 3-sigma event has a 0.3% chance of being a statistical fluke, but many 3-sigma events in physics have faded away with more data.) The analysis used a technique to hide the results from the scientists until the end, mitigating any unconscious bias about the data.<\/span><\/p>\n \u201cThese new data could be indicating that the Universe is more complicated that we thought so far\u201d, comments Sergi Novell Masot, PhD student at the Institute of Cosmos Sciences (ICCUB) and a member of the Institut d\u2019Estudis Espacials de Catalunya,\u00a0 who has recently published a complementary study of the DESI maps. \u201dHowever, before obtaining final conclusions,\u00a0 we need to understand the supernovae and CMB data that combined with DESI results seem to point towards this direction\u201d.<\/span><\/i><\/p>\n DESI is one of the most extensive surveys of the cosmos ever conducted. The state-of-the-art instrument can capture light from 5,000 galaxies simultaneously. Spanish groups had an important role in its construction and are collaborating in its operation.<\/span><\/p>\n <\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” link_font=”|700|||on||||” locked=”off” global_colors_info=”{}”]<\/p>\n DESI is mounted on the U.S. National Science Foundation\u2019s Nicholas U. Mayall 4-meter Telescope at\u00a0<\/span>Kitt Peak National Observatory<\/span><\/a> in Arizona. The experiment is now in its fourth of five years surveying the sky, with plans to measure roughly 50 million galaxies and quasars (extremely distant yet bright objects with black holes at their cores) by the time the project ends.<\/span><\/p>\n The new analysis uses data from the first three years of observations and includes nearly 15 million of the best measured galaxies and quasars. It\u2019s a major leap forward, improving the experiment\u2019s precision with a dataset that is more than double what was used in DESI\u2019s first analysis, which also hinted at an <\/span>evolving dark energy<\/span><\/a>.<\/span><\/p>\n \u201cIf it is confirmed, this would be one of the most important results in cosmology of the last few decades, since it opens the door to new ideas beyond the standard model, \u039bCDM\u00bb, comments Juan Garc\u00eda-Bellido, a researcher at the Instituto de F\u00edsica Te\u00f3rica (IFT-UAM\/CSIC), who has collaborated in this measurement. \u201cIf results get higher significance with future measurements we could explore ideas like new theories of gravitation or quintessence, that predict an evolving acceleration for the Universe expansion\u201d.<\/span><\/i><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.16″ _module_preset=”default” locked=”off” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” link_font=”|700|||on||||” global_colors_info=”{}”]<\/p>\n DESI tracks dark energy\u2019s influence by studying how matter is spread across the universe. Events in the very early universe left subtle patterns in how matter is distributed, a feature called baryon acoustic oscillations (BAO). That BAO pattern acts as a standard ruler, with its size at different times directly affected by how the universe was expanding. Measuring the ruler at different distances shows researchers the strength of dark energy throughout history. DESI\u2019s precision with this approach is the best in the world.<\/span><\/p>\n \u201cWe are in an very exciting moment, since for a long time we thought the Universe behaves in a certain way, but now, with more precise data, we realize that there are aspects that we do not fully understand yet\u201d, says Laura Casas, a PhD student at the Institut de F\u00edsica d\u2019Altes Energies (IFAE) in Barcelona, who has led the validation of the Lyman-alpha forest analysis, the imprint of intervening clouds of hydrogen in the light from distant quasars. \u201cAlthough there is still much to research, the hints about evolving dark energy are a fascinating finding\u201d.<\/span><\/i><\/p>\n The collaboration will soon begin work on additional analyses to extract even more information from the current dataset, and DESI will continue collecting data. Other experiments coming online over the next several years will also provide complementary datasets for future analyses. <\/span><\/p>\n <\/span><\/p>\n [\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/www.ieec.cat\/wp-content\/uploads\/2025\/03\/image3-e1742396796604.jpg” _builder_version=”4.27.4″ _module_preset=”default” custom_margin=”||0px|||” global_colors_info=”{}”][\/et_pb_image][et_pb_text module_class=”ieec-img-footer” _builder_version=”4.27.4″ _module_preset=”default” text_font=”||||||||” text_font_size=”15px” text_line_height=”1.1em” background_color=”rgba(64,111,218,0.15)” min_height=”76px” custom_margin=”0px||||false|false” custom_padding=”30px|20px|30px|20px|true|true” global_colors_info=”{}”]<\/p>\n Deep view of a portion of the data from the first three years of DESI, the largest 3D map of the universe ever created. Each point in this image represents a distant galaxy. [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” link_font=”|700|||on||||” locked=”off” global_colors_info=”{}”]<\/p>\n \u201cThe observational results we are obtaining about the evolution of the Universe open a wide spectrum for possible theories that can explain these observations\u201d, comments Francisco Javier Castander, a researcher at the Institute of Space Sciences (ICE-CSIC) and IEEC, who has contributed to the experiment. \u201cIndependently of the dark energy nature, its properties will determine the Universe\u2019s future. It is very rewarding to verify that the instrument we have built\u00a0 allows us to make detailed observations of the sky, and then answer one of the biggest questions that humanity has ever asked\u201d.<\/span><\/i><\/p>\n Videos discussing the experiment\u2019s new analysis are available on the <\/span>DESI YouTube channel<\/span><\/a>. Alongside unveiling its latest dark energy results at the APS meeting today, the DESI collaboration also announced that its Data Release 1 (DR1) is now available for anyone to explore. With information on millions of celestial objects, the dataset will support a wide range of astrophysical research by others, in addition to DESI\u2019s cosmology goals. <\/span><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” hover_enabled=”0″ sticky_enabled=”0″]<\/p>\n [\/et_pb_text][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” link_font=”|700|||on||||” locked=”off” global_colors_info=”{}”]<\/p>\n DESI is supported by the DOE Office of Science and by the National Energy Research Scientific Computing Center, a DOE Office of Science national user facility. Additional support for DESI is provided by the U.S. National Science Foundation; the Science and Technology Facilities Council of the United Kingdom; the Gordon and Betty Moore Foundation; the Heising-Simons Foundation; the French Alternative Energies and Atomic Energy Commission (CEA); the National Council of Humanities, Sciences, and Technologies of Mexico; the Ministry of Science and Innovation of Spain; and by the DESI member institutions.<\/span><\/p>\n The DESI collaboration is honored to be permitted to conduct scientific research on I\u2019oligam Du\u2019ag (Kitt Peak), a mountain with particular significance to the Tohono O\u2019odham Nation.<\/span><\/p>\n The spanish institutions that participate in DESi are the <\/span>Centro de Investigaciones Energ\u00e9ticas, Medioambientales y Tecnol\u00f3gicas (CIEMAT), the Instituto de Ciencias del Espacio (ICE-CSIC\/IEEC), the Institut de Ci\u00e8ncies del Cosmos de la Universitat de Barcelona (ICCUB), the Institut de F\u00edsica d’Altes Energies (IFAE), the Instituto de F\u00edsica Te\u00f3rica (IFT-UAM\/CSIC), the Instituto de Astrof\u00edsica de Andaluc\u00eda (IAA) and the Instituto de Astrof\u00edsica de Canarias (IAC).<\/span><\/i><\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ _module_preset=”default” custom_margin=”||||false|false” locked=”off” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_divider color=”#406fda” _builder_version=”4.16″ _module_preset=”default” custom_margin=”||10px||false|false” global_colors_info=”{}”][\/et_pb_divider][et_pb_text admin_label=”Enlla\u00e7os” module_class=”ieec-sub-title” _builder_version=”4.27.4″ _module_preset=”default” text_font=”Cairo|700|||||||” text_text_color=”#406fda” text_font_size=”20px” custom_margin=”||10px||false|false” global_colors_info=”{}”]<\/p>\n Links<\/p>\n [\/et_pb_text][et_pb_text module_class=”ieec-sub-text” _builder_version=”4.27.4″ _module_preset=”default” text_font_size=”16px” text_line_height=”1.1em” link_font=”|700|||on|||#1a1140|” link_text_color=”#1a1140″ link_line_height=”1.4em” custom_margin=”20px||||false|false” global_colors_info=”{}”]<\/p>\n IEEC<\/a><\/strong> [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.16″ _module_preset=”default” custom_margin=”||||false|false” locked=”off” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_divider color=”#406fda” _builder_version=”4.16″ _module_preset=”default” custom_margin=”||10px||false|false” global_colors_info=”{}”][\/et_pb_divider][et_pb_text admin_label=”Contactes” module_class=”ieec-sub-title” _builder_version=”4.27.4″ _module_preset=”default” text_font=”Cairo|700|||||||” text_text_color=”#406fda” text_font_size=”20px” custom_margin=”||10px||false|false” global_colors_info=”{}”]<\/p>\n Contacts<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ admin_label=”Row” _builder_version=”4.16″ _module_preset=”default” custom_margin=”0px||||false|false” custom_padding=”0px||||false|false” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” custom_padding=”|||20px|false|false” border_width_left=”1px” border_color_left=”#406fda” global_colors_info=”{}”][et_pb_text module_class=”ieec-contact” _builder_version=”4.27.4″ _module_preset=”default” text_font_size=”16px” text_line_height=”1.1em” link_font=”|700|||on|||#1a1140|” link_text_color=”#1a1140″ link_line_height=”1.4em” header_4_font=”|700|||||||” header_4_text_color=”#1a1140″ custom_margin=”||||false|false” locked=”off” global_colors_info=”{}”]<\/p>\n Castelldefels, Barcelona [\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.16″ _module_preset=”default” custom_padding=”|||20px|false|false” border_width_left=”1px” border_color_left=”#406fda” global_colors_info=”{}”][et_pb_text module_class=”ieec-contact” _builder_version=”4.27.4″ _module_preset=”default” text_font_size=”16px” text_line_height=”1.1em” link_font=”|700|||on|||#1a1140|” link_text_color=”#1a1140″ link_line_height=”1.4em” header_4_font=”|700|||||||” header_4_text_color=”#1a1140″ custom_margin=”||||false|false” locked=”off” global_colors_info=”{}”]<\/p>\n Institute of Space Studies of Catalonia (IEEC) [\/et_pb_text][et_pb_text module_class=”ieec-contact” _builder_version=”4.27.4″ _module_preset=”default” text_font_size=”16px” text_line_height=”1.1em” link_font=”|700|||on|||#1a1140|” link_text_color=”#1a1140″ link_line_height=”1.4em” header_4_font=”|700|||||||” header_4_text_color=”#1a1140″ custom_margin=”||||false|false” locked=”off” global_colors_info=”{}”]<\/p>\n Institute of Space Studies of Catalonia (IEEC) [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_class=”ieec-about” _builder_version=”4.14.8″ _module_preset=”default” background_color=”rgba(64,111,218,0.15)” global_module=”17324″ global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” custom_padding=”20px|50px|20px|50px|true|true” global_colors_info=”{}”][et_pb_text admin_label=”Sobre l’IEEC” _builder_version=”4.16″ _module_preset=”default” header_2_font=”|700|||||||” header_2_font_size=”25px” custom_margin=”||10px||false|false” header_2_font_size_tablet=”23px” header_2_font_size_phone=”23px” header_2_font_size_last_edited=”on|phone” locked=”off” global_colors_info=”{}”]<\/p>\n [\/et_pb_text][et_pb_text admin_label=”Text” _builder_version=”4.16″ _module_preset=”default” text_font=”||on||||||” link_font=”|700|||on||||” locked=”off” global_colors_info=”{}”]<\/p>\n The Institute of Space Studies of Catalonia (IEEC \u2014 Institut d\u2019Estudis Espacials de Catalunya) promotes and coordinates space research and technology development in Catalonia for the benefit of society. IEEC fosters collaborations both locally and worldwide and is an efficient agent of knowledge, innovation and technology transfer. As a result of more than 25 years of high-quality research, done in collaboration with major international organisations, IEEC ranks among the best international research centres, focusing on areas such as: astrophysics, cosmology, planetary science, and Earth Observation. IEEC\u2019s engineering division develops instrumentation for ground- and space-based projects, and has extensive experience in working with private or public organisations from the aerospace and other innovation sectors.<\/p>\n The IEEC is a non-profit public sector foundation that was established in February 1996. It has a Board of Trustees composed of the Generalitat de Catalunya, Universitat de Barcelona (UB), Universitat Aut\u00f2noma de Barcelona (UAB), Universitat Polit\u00e8cnica de Catalunya \u00b7 BarcelonaTech (UPC), and the Spanish Research Council (CSIC). The IEEC is also a CERCA centre.<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" This study reveals indications that dark energy, previously thought to be a cosmological constant, could evolve over time in unexpected ways.<\/p>\n","protected":false},"author":12,"featured_media":34422,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"2880","footnotes":""},"categories":[111,74,98,104],"tags":[],"class_list":["post-34445","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-highlighted-news-small","category-news","category-science","category-talent-news"],"yoast_head":"\n
\u2022 The standard model of cosmology struggles to explain all the observations when taken together \u2014 but a model where dark energy\u2019s influence changes over time seems to fit the data well<\/em>
\u2022 Researchers from the Centro de Investigaciones Energ\u00e9ticas, Medioambientales y Tecnol\u00f3gicas (CIEMAT), the Institute of Cosmos Sciences (ICCUB), the Institute of Space Sciences (ICE CSIC), the Institut de Fisica d\u2019Altes Energies (IFAE) and the Instituto de F\u00edsica Te\u00f3rica (IFT, UAM-CSIC), including members of the IEEC, have had important responsibilities in the scientific analysis of the data<\/em><\/p>\n
KPNO\/NOIRLab\/NSF\/AURA\/B.Tafreshi<\/strong><\/p>\n
Claire Lamman\/DESI collaboration<\/strong><\/p>\n
DESI Collaboration and KPNO\/NOIRLab\/NSF\/AURA\/R.Proctor<\/strong><\/p>\nThe Dark Energy Spectroscopic Instrument Collaboration<\/h2>\n
<\/a>ICCUB<\/a><\/strong>
<\/a>ICE-CSIC<\/a><\/strong>
CIEMAT<\/a>
<\/a>IFAE<\/a><\/a>
<\/a>IFT-UAM\/CSIC<\/a>
<\/a>DESI<\/a><\/strong><\/a><\/a><\/p>\nIEEC Communication Office<\/h4>\n
E-mail: comunicacio@ieec.cat<\/a><\/p>\nLead researchers at the IEEC<\/h4>\n
H\u00e9ctor Gil<\/h4>\n
Institut de Ci\u00e8ncies del Cosmos (ICCUB)<\/span>
E-mail: <\/span>hectorgil@ieec.cat<\/span><\/a>, <\/span>hectorgil@icc.ub.edu<\/span><\/a><\/p>\nFrancisco Castander<\/h4>\n
Institute of Space Sciences (ICE-CSIC)
E-mail: <\/span>fjc@ieec.cat<\/span><\/a>, <\/span>fjc@ice.csic.es<\/span><\/a><\/p>\nAbout the IEEC<\/h2>\n