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id="eso-logo-wrapper"> <div class="section-title section-title-nolink">Highlights</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/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">eso2507 — Press Release</div> <div class="pr-title">Oxygen discovered in most distant known galaxy</div> <div class="pr-extra"> <div class="pr-headline">Two different teams of astronomers have detected oxygen in the most distant known galaxy, JADES-GS-z14-0. The discovery, reported in two separate studies, was made possible thanks to the Atacama Large Millimeter/submillimeter Array (ALMA), in which the European Southern Observatory (ESO) is a partner. This record-breaking detection is making astronomers rethink how quickly galaxies formed in the early Universe.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/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">eso2506 — Press Release</div> <div class="pr-title">New ESO analysis confirms severe damage from industrial complex planned near Paranal</div> <div class="pr-extra"> <div class="pr-headline">An in-depth technical analysis by the European Southern Observatory (ESO) has evaluated the impact of the INNA megaproject on the facilities at the Paranal Observatory, Chile — and the results are alarming. The analysis reveals that INNA would increase light pollution above the Very Large Telescope (VLT) by at least 35% and by more than 50% above the south site of the Cherenkov Telescope Array Observatory (CTAO-South). INNA would also increase air turbulence in the area, further degrading conditions for astronomical observations, while vibrations from the project could seriously impair the functioning of some of the astronomical facilities, like the Extremely Large Telescope (ELT), at the Paranal Observatory.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/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</div> <div class="pr-title">Telescope first light for ESO’s Extremely Large Telescope now planned for March 2029</div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/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">eso2505 — Press Release</div> <div class="pr-title">ESO observations help almost fully rule out 2024 YR4 asteroid impact</div> <div class="pr-extra"> <div class="pr-headline">New observations of 2024 YR4 conducted with the European Southern Observatory’s Very Large Telescope (ESO’s VLT) and facilities around the world have all but ruled out an impact of the asteroid with our planet. The asteroid has been closely monitored in the past couple of months as its odds of impacting Earth in 2032 rose to around 3%, the highest impact probability ever reached for a sizable asteroid. After the latest observations, the odds of impact dropped to nearly zero.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/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">eso2504 — Press Release</div> <div class="pr-title">“Out of science fiction”: First 3D observations of an exoplanet’s atmosphere reveal a unique climate</div> <div class="pr-extra"> <div class="pr-headline">Astronomers have peered through the atmosphere of a planet beyond the Solar System, mapping its 3D structure for the first time. By combining all four telescope units of the European Southern Observatory’s Very Large Telescope (ESO’s VLT), they found powerful winds carrying chemical elements like iron and titanium, creating intricate weather patterns across the planet’s atmosphere. The discovery opens the door for detailed studies of the chemical makeup and weather of other alien worlds.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/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">eso2503 — Press Release</div> <div class="pr-title">Star cluster reveals its colours in stunning 80-million-pixel ESO image</div> <div class="pr-extra"> <div class="pr-headline">The European Southern Observatory (ESO) has released a stunning 80 million-pixel image of the star cluster RCW 38, as captured by ESO’s Visible and Infrared Survey Telescope for Astronomy (VISTA), operating in Chile’s Atacama Desert.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/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">eso2502 — Press Release</div> <div class="pr-title">Extreme supersonic winds measured on planet outside our Solar System</div> <div class="pr-extra"> <div class="pr-headline">Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds up to 33 000 km/h, the winds make up the fastest jetstream of its kind ever measured on a planet. The discovery was made using the European Southern Observatory’s Very Large Telescope (ESO’s VLT) in Chile and provides unique insights into the weather patterns of a distant world.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/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">eso2501 — Press Release</div> <div class="pr-title">World's darkest and clearest skies at risk from industrial megaproject</div> <div class="pr-extra"> <div class="pr-headline">On December 24th, AES Andes, a subsidiary of the US power company AES Corporation, submitted a project for a massive industrial complex for environmental impact assessment. This complex threatens the pristine skies above ESO’s Paranal Observatory in Chile’s Atacama Desert, the darkest and clearest of any astronomical observatory in the world [1]. The industrial megaproject is planned to be located just 5 to 11 kilometres from telescopes at Paranal, which would cause irreparable damage to astronomical observations, in particular due to light pollution emitted throughout the project’s operational life. Relocating the complex would save one of Earth's last truly pristine dark skies.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/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">eso2418 — Press Release</div> <div class="pr-title">First ever binary star found near our galaxy’s supermassive black hole</div> <div class="pr-extra"> <div class="pr-headline">An international team of researchers has detected a binary star orbiting close to Sagittarius A*, the supermassive black hole at the centre of our galaxy. It is the first time a stellar pair has been found in the vicinity of a supermassive black hole. The discovery, based on data collected by the European Southern Observatory’s Very Large Telescope (ESO’s VLT), helps us understand how stars survive in environments with extreme gravity, and could pave the way for the detection of planets close to Sagittarius A*.</div> </div> </div> </div> </a> </div>  <div class="slide"> <a href="/public/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">eso2417 — Press Release</div> <div class="pr-title">Astronomers take the first close-up picture of a star outside our galaxy</div> <div class="pr-extra"> <div class="pr-headline">“For the first time, we have succeeded in taking a zoomed-in image of a dying star in a galaxy outside our own Milky Way,” says Keiichi Ohnaka, an astrophysicist from Universidad Andrés Bello in Chile. Located a staggering 160 000 light-years from us, the star WOH G64 was imaged thanks to the impressive sharpness offered by the European Southern Observatory’s Very Large Telescope Interferometer (ESO’s VLTI). The new observations reveal a star puffing out gas and dust, in the last stages before it becomes a 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;">Our Stories</h1> <div style="margin-top: 4rem;" class="story-categories"> <span class="story-category story-selected-category" data-category="all">All</span> <span class="story-category" data-category="release">Press Releases</span> <span class="story-category" data-category="announcement">Announcements</span> <span class="story-category" data-category="potw">Pictures of the Week</span> <span class="story-category" data-category="post">Blog Posts</span> <span class="story-category" 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severe damage from industrial complex planned near Paranal</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"> Video </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/announcements/annlang25003-es-cl/"> <div class="story-img-container"> <img class="story-img" src="https://cdn.eso.org/images/thumb350x/annlang25003a-es-cl.jpg" alt="Miembros del Parlamento Europeo visitan oficinas de ESO en Santiago"> <div class="section-title section-title-nolink story-category-stamp"> Announcement </div> </div> <div class="story-description"> <div class="date">20 Mar 2025 — annlang25003-es-cl-en</div> <div class="title">Members of the European Parliament visit ESO offices in Santiago</div> </div> </a> </div> <div class="story-container"> <a href="/public/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"> Press Release </div> </div> <div class="story-description"> <div class="date">20 Mar 2025 — eso2507</div> <div class="title">Oxygen discovered in most distant known galaxy</div> </div> </a> </div> <div class="story-container"> <div class="story-more-container"> <span class="story-more">More...</span> </div> </div> </div> <h1 class="slogans-container">Our Telescopes</h1> <div class="row slogans" 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