ESO France

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</a></li><li class=""><a href="/public/teles-instr/paranal-observatory/ngts/"> NGTS </a></li><li class=""><a href="/public/teles-instr/paranal-observatory/ctao/"> Cherenkov Telescope Array Observatory </a></li></ul></li><li class="submenu"><a href="/public/teles-instr/lasilla/"> La Silla Observatory <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-314" class="submenu-aim sublevel"><li class="submenu"><a href="/public/teles-instr/lasilla/swedish/"> Swedish–ESO Submillimetre Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-315" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/swedish/simba/"> SIMBA </a></li></ul></li><li class="submenu"><a href="/public/teles-instr/lasilla/ntt/"> New Technology Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-317" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/ntt/efosc2/"> EFOSC2 </a></li><li class=""><a href="/public/teles-instr/lasilla/ntt/emmi/"> EMMI </a></li><li class=""><a href="/public/teles-instr/lasilla/ntt/irspec/"> IRSPEC </a></li><li class=""><a href="/public/teles-instr/lasilla/ntt/sofi/"> SOFI </a></li><li class=""><a href="/public/teles-instr/lasilla/ntt/soxs/"> SOXS </a></li><li class=""><a href="/public/teles-instr/lasilla/ntt/susi2/"> SUSI and SUSI2 </a></li></ul></li><li class="submenu"><a href="/public/teles-instr/lasilla/36/"> ESO 3.6-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-324" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/36/adonis/"> ADONIS </a></li><li class=""><a href="/public/teles-instr/lasilla/36/caspec/"> CASPEC </a></li><li class=""><a href="/public/teles-instr/lasilla/36/irspec/"> IRSPEC </a></li><li class=""><a href="/public/teles-instr/lasilla/36/harps/"> HARPS </a></li><li class=""><a href="/public/teles-instr/lasilla/36/mefos/"> MEFOS </a></li><li class=""><a href="/public/teles-instr/lasilla/36/nirps/"> NIRPS </a></li><li class=""><a href="/public/teles-instr/lasilla/36/optopus/"> OPTOPUS </a></li><li class=""><a href="/public/teles-instr/lasilla/36/timmi2/"> TIMMI/2 </a></li><li class=""><a href="/public/teles-instr/lasilla/36/36-infrared-photometer-spectrophotometer/"> Infrared Photometer/Spectrophotometer </a></li><li class=""><a href="/public/teles-instr/lasilla/36/36-standard-photometer/"> Standard Photometer </a></li><li class=""><a href="/public/teles-instr/lasilla/36/infrared-specklegraph/"> Infrared Specklegraph </a></li><li class=""><a href="/public/teles-instr/lasilla/36/infrared-speckle-interferometer/"> Infrared Speckle Interferometer </a></li><li class=""><a href="/public/teles-instr/lasilla/36/efosc/"> EFOSC </a></li></ul></li><li class="submenu"><a href="/public/teles-instr/lasilla/mpg22/"> MPG/ESO 2.2-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-338" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/mpg22/feros/"> FEROS </a></li><li class=""><a href="/public/teles-instr/lasilla/mpg22/grond/"> GROND </a></li><li class=""><a href="/public/teles-instr/lasilla/mpg22/irac2/"> IRAC & IRAC2 </a></li><li class=""><a href="/public/teles-instr/lasilla/mpg22/pisco/"> PISCO </a></li><li class=""><a href="/public/teles-instr/lasilla/mpg22/wfi/"> WFI </a></li><li class=""><a href="/public/teles-instr/lasilla/mpg22/infrared-photometer-spectrophotometer/"> Infrared Photometer/Spectrophotometer </a></li></ul></li><li class="submenu"><a href="/public/teles-instr/lasilla/swiss/"> Swiss 1.2-metre Leonhard Euler Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-345" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/swiss/coralie/"> CORALIE </a></li></ul></li><li class=""><a href="/public/teles-instr/lasilla/rem/"> Rapid Eye Mount telescope </a></li><li class=""><a href="/public/teles-instr/lasilla/trappist/"> TRAnsiting Planets and PlanetesImals Small Telescope–South </a></li><li class="submenu"><a href="/public/teles-instr/lasilla/danish154/"> Danish 1.54-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-349" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/danish154/coravel/"> CORAVEL </a></li><li class=""><a href="/public/teles-instr/lasilla/danish154/dfosc/"> DFOSC </a></li><li class=""><a href="/public/teles-instr/lasilla/danish154/ccd/"> CCD camera </a></li><li class=""><a href="/public/teles-instr/lasilla/danish154/hb-photometer/"> Hβ Photometer </a></li><li class=""><a href="/public/teles-instr/lasilla/danish154/two-channel-photometer/"> Two-Channel Photometer </a></li><li class=""><a href="/public/teles-instr/lasilla/danish154/four-channel-photometer/"> Four-Channel Photometer </a></li><li class=""><a href="/public/teles-instr/lasilla/danish154/six-channel-photometer/"> Six-Channel uvby-Hβ Photometer </a></li></ul></li><li class=""><a href="/public/teles-instr/lasilla/tarot/"> Télescope à Action Rapide pour les Objets Transitoires </a></li><li class=""><a href="/public/teles-instr/lasilla/1mschmidt/"> ESO 1-metre Schmidt telescope </a></li><li class="submenu"><a href="/public/teles-instr/lasilla/152metre/"> ESO 1.52-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-359" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/152metre/bandc/"> Boller and Chivens Spectrograph </a></li><li class=""><a href="/public/teles-instr/lasilla/152metre/coude/"> Coudé Spectrograph </a></li><li class=""><a href="/public/teles-instr/lasilla/152metre/echelec/"> ECHELEC </a></li><li class=""><a href="/public/teles-instr/lasilla/152metre/rv-cass-spectrograph/"> RV Cass Spectrograph </a></li></ul></li><li class="submenu"><a href="/public/teles-instr/lasilla/1metre/"> ESO 1-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-364" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/1metre/fideos/"> FIDEOS </a></li><li class=""><a href="/public/teles-instr/lasilla/1metre/infrared-photometer/"> Infrared Photometer </a></li><li class=""><a href="/public/teles-instr/lasilla/1metre/single-channel-photometer/"> Single-Channel Photometer </a></li></ul></li><li class="submenu"><a href="/public/teles-instr/lasilla/05metre/"> ESO 0.5-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-368" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/05metre/single-channel-photometer/"> Single-Channel Photometer </a></li><li class=""><a href="/public/teles-instr/lasilla/05metre/double-channel-photometer/"> Double-Channel Photometer </a></li></ul></li><li class="submenu"><a href="/public/teles-instr/lasilla/coude/"> Coudé Auxiliary Telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-371" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/coude/ces/"> CES </a></li></ul></li><li class=""><a href="/public/teles-instr/lasilla/marly/"> MarLy 1-metre telescope </a></li><li class="submenu"><a href="/public/teles-instr/lasilla/09metre/"> Dutch 0.9-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-374" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/09metre/walraven/"> Walraven Photometer </a></li></ul></li><li class=""><a href="/public/teles-instr/lasilla/t70/"> Swiss T70 telescope </a></li><li class="submenu"><a href="/public/teles-instr/lasilla/bochum/"> Bochum 0.61-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-377" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/bochum/bochum-scanner/"> Bochum Scanner </a></li><li class=""><a href="/public/teles-instr/lasilla/bochum/bochum-photometer/"> Bochum Photometer </a></li></ul></li><li class="submenu"><a href="/public/teles-instr/lasilla/danish05/"> Danish 0.5-metre telescope <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-380" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/lasilla/danish05/danish-two-channel-hb-photometer/"> Two-Channel Hβ Photometer </a></li><li class=""><a href="/public/teles-instr/lasilla/danish05/danish-four-channel-uvby-photometer/"> Four-Channel uvby Photometer </a></li><li class=""><a href="/public/teles-instr/lasilla/danish05/danish-six-channel-uvby-hb-photometer/"> Six-Channel uvby–Hβ Photometer </a></li></ul></li><li class=""><a href="/public/teles-instr/lasilla/gpo/"> Grand Prisme Objectif telescope </a></li><li class=""><a href="/public/teles-instr/lasilla/swiss04/"> Swiss 0.4-metre telescope </a></li><li class=""><a href="/public/teles-instr/lasilla/marseille/"> Marseille 0.36-metre telescope </a></li><li class=""><a href="/public/teles-instr/lasilla/grb/"> GRB Monitoring System </a></li><li class=""><a href="/public/teles-instr/lasilla/mascara/"> MASCARA </a></li><li class=""><a href="/public/teles-instr/lasilla/blackgem/"> BlackGEM </a></li><li class=""><a href="/public/teles-instr/lasilla/extra/"> ExTrA </a></li><li class=""><a href="/public/teles-instr/lasilla/test-bed/"> Test-Bed Telescope </a></li></ul></li><li class="submenu"><a href="/public/teles-instr/apex/"> APEX <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-392" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/apex/apex-2a/"> APEX–2A </a></li><li class=""><a href="/public/teles-instr/apex/artemis/"> ArTéMiS </a></li><li class=""><a href="/public/teles-instr/apex/aszca/"> ASZCa </a></li><li class=""><a href="/public/teles-instr/apex/champ-plus/"> CHAMP+ </a></li><li class=""><a href="/public/teles-instr/apex/concerto/"> CONCERTO </a></li><li class=""><a href="/public/teles-instr/apex/flash/"> FLASH </a></li><li class=""><a href="/public/teles-instr/apex/flash-plus/"> FLASH+ </a></li><li class=""><a href="/public/teles-instr/apex/laboca/"> LABOCA </a></li><li class=""><a href="/public/teles-instr/apex/mpi_11thz/"> MPI_1.1THz </a></li><li class=""><a href="/public/teles-instr/apex/p-artemis/"> P-ArTéMiS </a></li><li class=""><a href="/public/teles-instr/apex/pi230/"> PI230 </a></li><li class=""><a href="/public/teles-instr/apex/polka/"> PolKa </a></li><li class=""><a href="/public/teles-instr/apex/saboca/"> SABOCA </a></li><li class=""><a href="/public/teles-instr/apex/sepia/"> SEPIA </a></li><li class=""><a href="/public/teles-instr/apex/shefi/"> SHeFI </a></li></ul></li><li class="submenu"><a href="/public/teles-instr/alma/"> ALMA <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-408" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/alma/antennas/"> Antennas </a></li><li class=""><a href="/public/teles-instr/alma/transporters/"> Transporters </a></li><li class=""><a href="/public/teles-instr/alma/interferometry/"> Interferometry </a></li><li class=""><a href="/public/teles-instr/alma/receiver-bands/"> Receiver Bands </a></li><li class=""><a href="/public/teles-instr/alma/residencia/"> ALMA Residencia </a></li></ul></li><li class=""><a href="/public/teles-instr/elt/"> ELT </a></li><li class="submenu"><a href="/public/teles-instr/technology/"> Technology for Telescopes <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-415" class="submenu-aim sublevel"><li class=""><a href="/public/teles-instr/technology/active_optics/"> Active Optics </a></li><li class=""><a href="/public/teles-instr/technology/adaptive_optics/"> Adaptive Optics </a></li><li class=""><a href="/public/teles-instr/technology/ifu/"> Integral Field Units </a></li><li class=""><a href="/public/teles-instr/technology/interferometry/"> Interferometry </a></li><li class=""><a href="/public/teles-instr/technology/spectroscopy/"> Spectroscopy </a></li><li class=""><a href="/public/teles-instr/technology/polarimetry/"> Polarimetry </a></li></ul></li><li class=""><a href="/public/teles-instr/instruments/"> Instruments </a></li> </ul> </div> </div> </li> <li><a href="/public/science/">Discoveries<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-423" class="submenu-aim"> <li class=""><a href="/public/science/key-discoveries/"> ESO Key Astronomical Discoveries </a></li><li class=""><a href="/public/science/exoplanets/"> Exoplanètes </a></li><li class=""><a href="/public/science/gravitationalwaves/"> Gravitational Wave Sources </a></li><li class="submenu"><a class="no-link children" href="#"> Black Holes <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa fa-angle-down"></span></span><ul id="submenu-aim-427" class="submenu-aim sublevel"><li class=""><a href="https://www.eso.org/public/science/event-horizon/"> First image of a black hole </a></li><li class=""><a href="https://www.eso.org/public/science/EHT-MilkyWay/"> First image of the Milky Way central black hole </a></li><li class=""><a href="https://www.eso.org/public/science/gc/"> More about the black hole at the galactic centre </a></li></ul></li><li class=""><a href="/public/science/grb/"> Les Sursauts Gamma </a></li><li class=""><a href="/public/science/archive/"> Archives Scientifiques </a></li> </ul> </div> </div> </li> <li><a href="/public/events/">Événements<span class="fa fa-angle-down level0-children-arrows"></span></a> <span class="mobile-children"> <span class="fa fa-angle-down"></span> </span> <div class="level1-wrapper"> <div class="level1"> <ul id="submenu-aim-433" class="submenu-aim"> <li class=""><a href="/public/events/press-evt/"> Press Events </a></li><li class="submenu"><a href="/public/events/special-evt/"> Événements spéciaux <span class="desktop-children topmenu-arrow fa fa-angle-right"></span></a><span class="mobile-children"><span class="fa 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</a></li><li class=""><a href="/public/jobs/conditions/paidassoc/"> Paid Associates </a></li></ul></li><li class=""><a href="/public/jobs/working-at-eso/"> Working at ESO </a></li><li class=""><a href="/public/jobs/other-information/"> Other Information </a></li> </ul> </div> </div> </li> </ul> </div> </nav> <div id="content" class=""> <div id="pr-carousel-wrapper"> <div id="eso-logo-wrapper"> <div class="section-title section-title-nolink">Faits marquants</div> <div class="eso-logo"> <a href="/public/"> <div class="sprites-esologo" title="European Organisation for Astronomical Research in the Southern Hemisphere"></div> <span>European<br>Southern<br>Observatory</span> </a> </div> </div> <div id="pr-carousel"> <div class="slide"> <a href="/public/france/news/eso2507/"> <img draggable="false" data-lazy="https://cdn.eso.org/images/banner1920/eso2507a.jpg" alt="Furthest detection of oxygen in the early Universe"> <div class="pr-content"> <div class="pr-description"> <div class="pr-type">eso2507fr — Communiqué de presse</div> <div class="pr-title">De l'oxygène découvert dans la galaxie la plus lointaine connue à ce jour</div> <div class="pr-extra"> <div class="pr-headline">Deux équipes différentes d'astronomes ont détecté de l'oxygène dans la galaxie la plus lointaine connue à ce jour, JADES-GS-z14-0. Cette découverte, rapportée dans deux études distinctes, a été rendue possible grâce à l'Atacama Large Millimeter/submillimeter Array (ALMA), dont l'Observatoire Européen Austral (ESO) est partenaire. Cette détection record amène les astronomes à reconsidérer la rapidité avec laquelle les galaxies se sont formées au début de l'Univers.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/france/news/eso2506/"> <img draggable="false" data-lazy="https://cdn.eso.org/images/banner1920/potw2128a.jpg" alt="A cosmic rainbow over the VLT"> <div class="pr-content"> <div class="pr-description"> <div class="pr-type">eso2506fr — Communiqué de presse</div> <div class="pr-title">Une nouvelle analyse de l'ESO confirme les graves dommages causés par le complexe industriel prévu près de Paranal</div> <div class="pr-extra"> <div class="pr-headline">Une analyse technique approfondie de l'Observatoire Européen Austral (ESO) a évalué l'impact du mégaprojet INNA sur les installations de l'Observatoire du Paranal, au Chili - et les résultats sont alarmants. L'analyse révèle que le projet INNA augmenterait la pollution lumineuse d'au moins 35 % au-dessus du Very Large Telescope (VLT) et de plus de 50 % au-dessus du site sud du Cherenkov Telescope Array Observatory (CTAO-South). Le projet INNA augmenterait également la turbulence de l'air dans la région, ce qui dégraderait encore les conditions d'observation astronomique, tandis que les vibrations du projet pourraient sérieusement compromettre le fonctionnement de certaines installations astronomiques, comme l'Extremely Large Telescope (ELT), à l'observatoire de Paranal.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/france/announcements/ann25001/"> <img draggable="false" data-lazy="https://cdn.eso.org/images/banner1920/ann25001a.jpg" alt="At the summit of Cerro Armazones"> <div class="pr-content"> <div class="pr-description"> <div class="pr-type">ann25001-fr</div> <div class="pr-title">La première lumière de l'Extremely Large Telescope de l'ESO est désormais prévue pour mars 2029</div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/france/news/eso2505/"> <img draggable="false" data-lazy="https://cdn.eso.org/images/banner1920/eso2505a.jpg" alt="Asteroid 2024 YR4 observed with ESO’s Very Large Telescope"> <div class="pr-content"> <div class="pr-description"> <div class="pr-type">eso2505fr — Communiqué de presse</div> <div class="pr-title">Les observations de l'ESO contribuent à écarter presque totalement l'impact de l'astéroïde 2024 YR4</div> <div class="pr-extra"> <div class="pr-headline">De nouvelles observations de l’astéroïde 2024 YR4, réalisées avec le Very Large Telescope de l’Observatoire Européen Austral (le VLT de l'ESO) et d’autres installations à travers le monde, ont presque totalement écarté la possibilité d’un impact avec notre planète. L’astéroïde a été étroitement surveillé ces derniers mois, car ses chances de percuter la Terre en 2032 avaient grimpé à environ 3 %, la probabilité d’impact la plus élevée jamais enregistrée pour un astéroïde de cette taille. Après les dernières observations, ces chances sont tombées à presque zéro.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/france/news/eso2504/"> <img draggable="false" data-lazy="https://cdn.eso.org/images/banner1920/eso2504a.jpg" alt="The 3D structure of the atmosphere of the exoplanet Tylos"> <div class="pr-content"> <div class="pr-description"> <div class="pr-type">eso2504fr — Communiqué de presse</div> <div class="pr-title">"Au delà de la science-fiction" : Les premières observations en 3D de l’atmosphère d’une exoplanète révèlent un climat unique.</div> <div class="pr-extra"> <div class="pr-headline">Des astronomes ont scruté l'atmosphère d'une planète située au-delà du système solaire, cartographiant pour la première fois sa structure en trois dimensions. En combinant les quatre télescopes du Very Large Telescope de l'Observatoire Européen Austral (VLT de l'ESO), ils ont trouvé des vents puissants transportant des éléments chimiques tels que le fer et le titane, créant des modèles météorologiques complexes dans l'atmosphère de la planète. Cette découverte ouvre la voie à des études détaillées de la composition chimique et des conditions météorologiques d'autres mondes extraterrestres.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/france/news/eso2503/"> <img draggable="false" data-lazy="https://cdn.eso.org/images/banner1920/eso2503a.jpg" alt="The RCW 38 cluster in infrared light"> <div class="pr-content"> <div class="pr-description"> <div class="pr-type">eso2503fr — Communiqué de presse</div> <div class="pr-title">Un amas d'étoiles révèle ses couleurs dans une image de l'ESO de 80 millions de pixels</div> <div class="pr-extra"> <div class="pr-headline">L'Observatoire Européen Austral (ESO) a publié une magnifique image de 80 millions de pixels de l'amas d'étoiles RCW 38, capturée par le Visible and Infrared Survey Telescope for Astronomy (VISTA) de l'ESO, installé dans le désert d'Atacama au Chili.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/france/news/eso2502/"> <img draggable="false" data-lazy="https://cdn.eso.org/images/banner1920/eso2502a.jpg" alt="Artist’s impression of supersonic winds on WASP-127b"> <div class="pr-content"> <div class="pr-description"> <div class="pr-type">eso2502fr — Communiqué de presse</div> <div class="pr-title">Des vents supersoniques extrêmes mesurés sur une planète hors du système solaire</div> <div class="pr-extra"> <div class="pr-headline">Des astronomes ont découvert des vents extrêmement puissants qui soufflent sur l'équateur de WASP-127b, une exoplanète géante. Atteignant une vitesse de 33 000 km/h, ces vents constituent le courant-jet le plus rapide de ce type jamais mesuré sur une planète. Cette découverte a été faite à l'aide du Very Large Telescope (VLT) de l'Observatoire Européen Austral (ESO) au Chili et fournit des informations uniques sur les conditions météorologiques d'un monde lointain.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/france/news/eso2501/"> <img draggable="false" data-lazy="https://cdn.eso.org/images/banner1920/potw2124a.jpg" alt="Touching the Arc of Space"> <div class="pr-content"> <div class="pr-description"> <div class="pr-type">eso2501fr — Communiqué de presse</div> <div class="pr-title">Le ciel le plus sombre et le plus pur du monde menacé par un mégaprojet industriel</div> <div class="pr-extra"> <div class="pr-headline">Le 24 décembre, AES Andes, une filiale de la compagnie d'électricité américaine AES Corporation, a soumis un projet de complexe industriel de grande envergure à une étude d'impact sur l'environnement. Ce complexe menace le ciel pur de l'observatoire de Paranal de l'ESO dans le désert d'Atacama au Chili, qui est le plus sombre et le plus clair de tous les observatoires astronomiques du monde [1]. Le mégaprojet industriel devrait être situé à une distance de 5 à 11 kilomètres des télescopes de Paranal, ce qui porterait un préjudice irréparable aux observations astronomiques, notamment en raison de la pollution lumineuse émise pendant toute la durée d'exploitation du projet. La relocalisation du complexe permettrait de préserver l'un des derniers ciels obscurs véritablement purs de la planète.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/france/news/eso2418/"> <img draggable="false" data-lazy="https://cdn.eso.org/images/banner1920/eso2418a.jpg" alt="Location of binary star D9 in the Milky Way"> <div class="pr-content"> <div class="pr-description"> <div class="pr-type">eso2418fr — Communiqué de presse</div> <div class="pr-title">Première étoile binaire découverte près du trou noir supermassif de notre galaxie</div> <div class="pr-extra"> <div class="pr-headline">Une équipe internationale de chercheurs a détecté une étoile binaire orbitant à proximité de Sagittarius A*, le trou noir supermassif situé au centre de notre galaxie. C'est la première fois qu'une paire d'étoiles est détectée à proximité d'un trou noir supermassif. Cette découverte, basée sur les données recueillies par le Very Large Telescope (VLT) de l'Observatoire Européen Austral (ESO), nous aide à comprendre comment les étoiles survivent dans des environnements où la gravité est extrême, et pourrait ouvrir la voie à la détection de planètes à proximité de Sagittarius A*.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/france/news/eso2417/"> <img draggable="false" data-lazy="https://cdn.eso.org/images/banner1920/eso2417a.jpg" alt="Image of the star WOH G64 taken by the VLTI"> <div class="pr-content"> <div class="pr-description"> <div class="pr-type">eso2417fr — Communiqué de presse</div> <div class="pr-title">Des astronomes réalisent la première photo rapprochée d'une étoile située en dehors de notre galaxie</div> <div class="pr-extra"> <div class="pr-headline">« Pour la première fois, nous avons réussi à prendre une image zoomée d'une étoile mourante dans une galaxie située en dehors de notre Voie lactée », explique Keiichi Ohnaka, astrophysicien à l'Universidad Andrés Bello au Chili. Située à 160 000 années-lumière de nous, l'étoile WOH G64 a été imagée grâce à la netteté impressionnante du « Very Large Telescope Interferometer » (VLTI) de l'Observatoire Européen Austral (ESO). Les nouvelles observations révèlent une étoile soufflant du gaz et de la poussière, dans les derniers stades avant de devenir une supernova.</div> </div> </div> </div> </a> </div>  </div>  </div>  <div id="eso-side-logo"> <a href="/public/"> <div data-spy="affix" data-offset-top="450" id="frontpage-side-logo"> <div class="sprites-esologo"></div> <span>European<br>Southern<br>Observatory</span> </div> </a> </div> <div class="container" id="body"> <div class="title-categories"> <h1 style="margin-top: 4rem; margin-bottom: 0px;">Nos fils d'infos</h1> <div style="margin-top: 4rem;" class="story-categories"> <span class="story-category story-selected-category" data-category="all">Tous</span> <span class="story-category" data-category="release">Communiqués de presse</span> <span class="story-category" data-category="announcement">Annonces</span> <span class="story-category" data-category="potw">Photos de la semaine</span> <span class="story-category" data-category="post">Articles du 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eso2506fr</div> <div class="title">Une nouvelle analyse de l'ESO confirme les graves dommages causés par le complexe industriel prévu près de Paranal</div> </div> </a> </div> <div class="story-container"> <a href="/public/images/potw2512a/"> <div class="story-img-container"> <img class="story-img" src="https://cdn.eso.org/images/small169/potw2512a.jpg" alt="A full Moon rises behind the ELT"> <div class="section-title section-title-nolink story-category-stamp"> Photo de la semaine </div> </div> <div class="story-description"> <div class="date">24 Mar 2025 — potw2512</div> <div class="title">A full Moon rises behind the ELT</div> </div> </a> </div> <div class="story-container"> <a href="/public/videos/eltu_M1-Edge-Sensors-Actuators/"> <div class="story-img-container"> <img class="story-img" src="https://cdn.eso.org/videos/small169/eltu_M1-Edge-Sensors-Actuators.jpg" alt="The incredible sensors and actuators of the world's largest telescope mirror"> <div class="section-title section-title-nolink story-category-stamp"> Vidéo </div> </div> <div class="story-description"> <div class="date">21 Mar 2025 — eltu_M1-Edge-Sensors-Actuators</div> <div class="title">The incredible sensors and actuators of the world's largest telescope mirror</div> </div> </a> </div> <div class="story-container"> <a href="/public/france/news/eso2507/"> <div class="story-img-container"> <img class="story-img" src="https://cdn.eso.org/images/small169/eso2507a.jpg" alt="Furthest detection of oxygen in the early Universe"> <div class="section-title section-title-nolink story-category-stamp"> Communiqué de presse </div> </div> <div class="story-description"> <div class="date">20 Mar 2025 — eso2507fr</div> <div class="title">De l'oxygène découvert dans la galaxie la plus lointaine connue à ce jour</div> </div> </a> </div> <div class="story-container"> <div class="story-more-container"> <span class="story-more">Plus...</span> </div> </div> </div> <h1 class="slogans-container">Nos 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= 'all'; const loadMore = (increment = storyIncrement) => { const next = storyCounter + increment let localStories = stories; if (storyCategory !== 'all') { // If storyCounter is not 0, the user clicked "More" // We want to go directly to the relevant url if not "all" category if (storyCounter !== 0) { let urlToLoad = ''; switch (storyCategory) { case 'release': urlToLoad = '/public/news/' break case 'announcement': urlToLoad = '/public/announcements/' break case 'potw': urlToLoad = '/public/images/potw/' break case 'post': urlToLoad = '/public/blog/' break case 'video': urlToLoad = '/public/videos/' break } if (urlToLoad !== '') { window.location.href = urlToLoad return } } localStories = stories.filter((story) => { return story.category === storyCategory }) } const sliceLocalStories = localStories.slice(storyCounter, next) const addMore = next - storyCounter === sliceLocalStories.length let storyContainerMore = document.querySelector('.story-container:last-child') storyContainerMore.style.display = (addMore ? 'block' : 'none') for (story of localStories.slice(storyCounter, next)) { let newStoryContainer = document.createElement('div') newStoryContainer.classList.add('story-container') let link = document.createElement('a') link.setAttribute('href', story.absolute_url) let imgContainer = document.createElement('div') imgContainer.classList.add('story-img-container') let img = document.createElement('img') img.setAttribute('src', story.main_visual_url) img.setAttribute('alt', story.main_visual_title) img.classList.add('story-img') let stamp = document.createElement('div') stamp.classList.add('section-title') stamp.classList.add('section-title-nolink') stamp.classList.add('story-category-stamp') let stampText = '' switch (story.category) { case 'release': stampText = "Communiqué de presse" break case 'announcement': stampText = "Annonce" break case 'potw': stampText = "Photo de la semaine" break case 'post': stampText = "Article du blog" break case 'video': stampText = "Vidéo" break } stamp.textContent = stampText let description = document.createElement('div') description.classList.add('story-description') let date = document.createElement('div') let title = document.createElement('div') date.classList.add('date') title.classList.add('title') date.textContent = `${story.release_date} - ${story.id}` title.textContent = story.title description.append(date) description.append(title) imgContainer.append(img) imgContainer.append(stamp) link.append(imgContainer) link.append(description) newStoryContainer.append(link) storyContainerMore.before(newStoryContainer) } storyCounter = next } const resetStories = () => { storyCounter = 0 const selected = document.querySelector(`.story-category[data-category="${storyCategory}"]`) const notSelected = document.querySelectorAll('.story-category') notSelected.forEach((element) => { element.classList.remove('story-selected-category') }) selected.classList.add('story-selected-category') let storyContainers = document.querySelectorAll('.story-container') if (storyContainers.length > 0) { storyContainers = [...storyContainers] storyContainers = storyContainers.slice(0, storyContainers.length - 1) for (storyContainer of storyContainers) { storyContainer.remove() } } } const moreStories = document.querySelector('.story-more-container') moreStories.addEventListener('click', (event) => { loadMore() }) const storyCategories = document.querySelectorAll('.story-category') storyCategories.forEach((element) => { element.addEventListener('click', (event) => { const cat = event.target.dataset.category if (storyCategory !== cat) { storyCategory = cat resetStories() loadMore(5) } }) }) var tag = document.createElement('script'); tag.src = "https://www.youtube.com/iframe_api"; var firstScriptTag = document.getElementsByTagName('script')[0]; firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); $('.pr-description').hover(function() { $(this).parents('.pr-content').prev('img').toggleClass('hover'); }); // Setup webcam popup $('.webcam-wrapper.popup').each(function() { $(this).magnificPopup({ type: 'image', delegate: 'a.popup', gallery: { enabled: true, preload: 0 }, mainClass: 'mfp-fade' }); }); }); </script> </div>  <div id="social-share" class="hidden-print"> <div class="link facebook" data-toggle="tooltip" data-placement="right" title="Share on Facebook"> <a href="https://www.facebook.com/sharer/sharer.php?u=https://www.eso.org/public/france/" target="_blank" rel="noopener noreferrer"><i class="fa-brands fa-facebook-f" aria-hidden="true"></i></a> </div> <div class="link twitter" data-toggle="tooltip" data-placement="right" title="Share on X/Twitter"> <a href="https://twitter.com/intent/tweet?url=https://www.eso.org/public/france/&text=&via=ESO" target="_blank" rel="noopener noreferrer"><i class="fa-brands fa-x-twitter"></i></i></a> </div> <div class="link pinterest" data-toggle="tooltip" data-placement="right" title="Share on Pinterest"> <a href="https://pinterest.com/pin/create/button/?url=https://www.eso.org/public/france/&media=&description=" target="_blank" rel="noopener noreferrer"><i class="fa-brands fa-pinterest-p" aria-hidden="true"></i></a> </div> <div class="link print" data-toggle="tooltip" data-placement="right" title="Print"> <a href="javascript:window.print()" target="_blank" rel="noopener noreferrer"><i class="fa fa-print" aria-hidden="true"></i></a> </div> <div class="link email" data-toggle="tooltip" data-placement="right" title="Share by email"> <a href="mailto:%20?subject=ESO — &body=https://www.eso.org/public/france/" target="_blank" rel="noopener noreferrer"><i class="fa-regular fa-envelope" aria-hidden="true"></i></a> </div> </div> <script> $('[data-toggle="tooltip"]').tooltip(); </script> <input type='hidden' name='csrfmiddlewaretoken' value='Odf6eiTEfAfQFjYLqDOQOMOUtg55FKn8SKQRTSZt4wvZFM8mpDbjZvSS3gZuejAs' /> </body> </html>

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