Timeline | ELT

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position-absolute" id="timeline-img-4" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/tl-m4-full.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-5" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/M3-render1-big-cc.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-6" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/elt_internal-cc.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-7" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/tl-dome-complete-full.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-8" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/tl-secondary-full.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-9" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/tl-mirror-polish-full.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-10" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/tl-mirror-polish-full.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-11" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/ann18031a.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-12" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/eso1801a.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-13" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/tl-dome-contract-full.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-14" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/ann15093b.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-15" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/ann15073b.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-16" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/ann15070b.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-17" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/ann15068c.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-18" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/tl-construction-starts-full.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-19" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/eso1419a.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-20" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/ann14019a.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-21" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/eso1345a.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-22" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/eso1225a.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-23" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/eso1139a.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-24" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/eso1018a.jpg"> <img class="w-100 h-100 position-absolute" id="timeline-img-25" style="top:0; left:0; opacity: 0;" src="https://cdn.eso.org/images/banner1920/owl_still_a_cc.jpg"> </div> </div> <div class="timeline"> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/header-science-cosmology.jpg" style="background: rgba(90, 140, 200, 0.9);"> <a class="timeline-anchor" id="timeline-quick-access-0"><</a> <div> <span class="timeline-content-year"> 2028 (planned) </span> <div class="timeline-content-title">ELT science verification</div> <p class="timeline-content-text">A set of scientific observations will be conducted with the ELT to demonstrate its capabilities.</p> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/tl-first-light-full.jpg" > <a class="timeline-anchor" id="timeline-quick-access-1"><</a> <div> <span class="timeline-content-year"> 2028 (planned) </span> <div class="timeline-content-title">Technical first light of the ELT</div> <p class="timeline-content-text">ELT has its technical first light.</p> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/tl-main-mirror-full.jpg" > <a class="timeline-anchor" id="timeline-quick-access-2"><</a> <div> <span class="timeline-content-year"> 2027 (planned) </span> <div class="timeline-content-title">Main mirror segments installation</div> <p class="timeline-content-text">ELT's main mirror segments are being installed.</p> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/eso1704i.jpg" > <a class="timeline-anchor" id="timeline-quick-access-3"><</a> <div> <span class="timeline-content-year"> 2027 (planned) </span> <div class="timeline-content-title">M5 mirror complete</div> <p class="timeline-content-text">ELT's M5 mirror is completed. Its dimensions are 2.7 x 2.1 metres</p> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/tl-m4-full.jpg" > <a class="timeline-anchor" id="timeline-quick-access-4"><</a> <div> <span class="timeline-content-year"> 2027 (planned) </span> <div class="timeline-content-title">M4 adaptive unit complete</div> <p class="timeline-content-text">ELT's M4 mirror is completed. Its diameter is 2.4 metres</p> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/M3-render1-big-cc.jpg" > <a class="timeline-anchor" id="timeline-quick-access-5"><</a> <div> <span class="timeline-content-year"> 2027 (planned) </span> <div class="timeline-content-title">Tertiary mirror complete</div> <p class="timeline-content-text">ELT's tertiary mirror is completed. Its diameter is 3.75 metres.</p> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/elt_internal-cc.jpg" > <a class="timeline-anchor" id="timeline-quick-access-6"><</a> <div> <span class="timeline-content-year"> 2026 (planned) </span> <div class="timeline-content-title">Telescope structure complete</div> <p class="timeline-content-text">ELT's telescope structure is completed. Its weight is 2800 tonnes.</p> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/tl-dome-complete-full.jpg" > <a class="timeline-anchor" id="timeline-quick-access-7"><</a> <div> <span class="timeline-content-year"> 2026 (planned) </span> <div class="timeline-content-title">Dome complete</div> <p class="timeline-content-text">ELT's dome is completed.</p> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/tl-secondary-full.jpg" > <a class="timeline-anchor" id="timeline-quick-access-8"><</a> <div> <span class="timeline-content-year"> 2025 (planned) </span> <div class="timeline-content-title">Secondary mirror complete</div> <p class="timeline-content-text">The ELT's secondary mirror is completed. With a diameter of 4.25 metres, the secondary mirror will be the largest in the world.</p> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/tl-mirror-polish-full.jpg" > <a class="timeline-anchor" id="timeline-quick-access-9"><</a> <div> <span class="timeline-content-year"> 2023 </span> <div class="timeline-content-title">First main mirror segment polished</div> <p class="timeline-content-text">The first of the 798 segments for the ELT primary mirror is polished.</p> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/tl-mirror-polish-full.jpg" > <a class="timeline-anchor" id="timeline-quick-access-10"><</a> <a href="https://www.eso.org/public/announcements/ann19040/"> <div> <span class="timeline-content-year"> 2019 </span> <div class="timeline-content-title">First 18 ELT Primary Mirror Blanks Arrive at Safran Reosc</div> <p class="timeline-content-text">This is the first segment blank for mirror 1 (M1) of the ELT. Manufactured by SCHOTT, it was completed at the end of August 2018. M1 is the primary mirror of the ELT and, when completed, will be 39 metres in diameter and consist of 798 segments.</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/ann18031a.jpg" > <a class="timeline-anchor" id="timeline-quick-access-11"><</a> <a href="https://www.eso.org/public/announcements/ann18031/"> <div> <span class="timeline-content-year"> May 2018 </span> <div class="timeline-content-title">Dome and main structure start</div> <p class="timeline-content-text">The ELT site on Cerro Armazones got its first foundations.</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/eso1801a.jpg" > <a class="timeline-anchor" id="timeline-quick-access-12"><</a> <a href="https://www.eso.org/public/news/eso1801/"> <div> <span class="timeline-content-year"> 9 Jan 2018 </span> <div class="timeline-content-title">First ELT main mirror segments successfully cast</div> <p class="timeline-content-text">The first hexagonal segments for the main mirror of ELT were successfully cast by the German company SCHOTT.</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/tl-dome-contract-full.jpg" > <a class="timeline-anchor" id="timeline-quick-access-13"><</a> <a href="https://www.eso.org/public/news/eso1617/"> <div> <span class="timeline-content-year"> 25 May 2016 </span> <div class="timeline-content-title">Contract awarded for construction of dome and main telescope structure</div> <p class="timeline-content-text">At a ceremony in Garching bei M眉nchen, Germany, ESO signed the contract with the ACe Consortium for the dome and telescope structure.</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/ann15093b.jpg" > <a class="timeline-anchor" id="timeline-quick-access-14"><</a> <a href="https://www.eso.org/public/announcements/ann15093/"> <div> <span class="timeline-content-year"> 10 Dec 2015 </span> <div class="timeline-content-title">Agreement Signed for MAORY</div> <p class="timeline-content-text">Agreement signed for the ELT's MAORY instrument, since renamed to MORFEO</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/ann15073b.jpg" > <a class="timeline-anchor" id="timeline-quick-access-15"><</a> <a href="https://www.eso.org/public/announcements/ann15073/"> <div> <span class="timeline-content-year"> 28 Sep 2015 </span> <div class="timeline-content-title">Agreement Signed for METIS</div> <p class="timeline-content-text">ESO has signed an agreement for the design and construction of METIS</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/ann15070b.jpg" > <a class="timeline-anchor" id="timeline-quick-access-16"><</a> <a href="https://www.eso.org/public/announcements/ann15070/"> <div> <span class="timeline-content-year"> 23 Sep 2015 </span> <div class="timeline-content-title">Agreement Signed for HARMONI</div> <p class="timeline-content-text">Agreement signed for the design and construction of HARMONI</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/ann15068c.jpg" > <a class="timeline-anchor" id="timeline-quick-access-17"><</a> <a href="https://www.eso.org/public/announcements/ann15068/"> <div> <span class="timeline-content-year"> 18 Sep 2015 </span> <div class="timeline-content-title">Agreement Signed for MICADO</div> <p class="timeline-content-text">ESO has signed an agreement to design and construct MICADO</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/tl-construction-starts-full.jpg" > <a class="timeline-anchor" id="timeline-quick-access-18"><</a> <a href="https://www.eso.org/public/news/eso1440/"> <div> <span class="timeline-content-year"> 4 Dec 2014 </span> <div class="timeline-content-title">Green light given for ELT construction</div> <p class="timeline-content-text">At their meeting ESO鈥檚 main governing body, the Council, gave the green light for the construction of the ELT in two phases.</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/eso1419a.jpg" > <a class="timeline-anchor" id="timeline-quick-access-19"><</a> <a href="https://www.eso.org/public/news/eso1419/"> <div> <span class="timeline-content-year"> 19 Jun 2014 </span> <div class="timeline-content-title">Part of Cerro Armazones peak flattened to make space for ELT</div> <p class="timeline-content-text">Part of the 3000-metre peak of Cerro Armazones was blasted away as a step towards levelling the summit in preparation for the construction of the ELT.</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/ann14019a.jpg" > <a class="timeline-anchor" id="timeline-quick-access-20"><</a> <a href="https://www.eso.org/public/announcements/ann14019/"> <div> <span class="timeline-content-year"> 14 Mar 2014 </span> <div class="timeline-content-title">Construction begins on road to Cerro Armazones</div> <p class="timeline-content-text">The civil works for the ELT began. The Chilean company, ICAFAL Ingenier铆a y Construcci贸n S.A. (ICAFAL), started the construction of a road to the summit of Cerro Armazones.</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/eso1345a.jpg" > <a class="timeline-anchor" id="timeline-quick-access-21"><</a> <a href="https://www.eso.org/public/news/eso1345/"> <div> <span class="timeline-content-year"> 27 Oct 2013 </span> <div class="timeline-content-title">Land around Cerro Armazones donated to ESO for the ELT site</div> <p class="timeline-content-text">The President of Chile Sebasti谩n Pi帽era handed over the legal documents by which the Chilean government transferred the land around Cerro Armazones to ESO.</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/eso1225a.jpg" > <a class="timeline-anchor" id="timeline-quick-access-22"><</a> <a href="https://www.eso.org/public/news/eso1225/"> <div> <span class="timeline-content-year"> 11 Jun 2012 </span> <div class="timeline-content-title">ESO Council approves ELT programme</div> <p class="timeline-content-text">ESO鈥檚 governing body, the Council, met at the ESO Headquarters in Garching, Germany, and voted to start the Extremely Large Telescope (ELT) Programme.</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/eso1139a.jpg" > <a class="timeline-anchor" id="timeline-quick-access-23"><</a> <a href="https://www.eso.org/public/news/eso1139/"> <div> <span class="timeline-content-year"> 13 Oct 2011 </span> <div class="timeline-content-title">ESO and Chile sign agreement on ELT</div> <p class="timeline-content-text">The Republic of Chile and ESO signed an agreement regarding land for the ELT, including the donation of an area of 189 km2 around Cerro Armazones for the installation of the ELT as well as a concession for 50 years relating to the surrounding area, representing an additional 362 square kilometres, which will protect the ELT from light pollution and mining operations.</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/eso1018a.jpg" > <a class="timeline-anchor" id="timeline-quick-access-24"><</a> <a href="https://www.eso.org/public/news/eso1018/"> <div> <span class="timeline-content-year"> 26 Apr 2010 </span> <div class="timeline-content-title">Cerro Armazones selected as site for ELT</div> <p class="timeline-content-text">This night-time panorama shows Cerro Armazones in the Chilean desert. Cerro Armazones was chosen as the site for the ELT by ESO's Council. Cerro Armazones is a mountain at an altitude of 3060 metres in the central part of Chile鈥檚 Atacama Desert, some 130 kilometres south of the town of Antofagasta and about 23 kilometres from Cerro Paranal, home of ESO鈥檚 Very Large Telescope. Cerro Armazones was chosen from a final shortlist of including the peaks Ventarrones, Tolonchar and Vizcachas in Chile, and La Palma in Spain.</p> </a> </div> </div> <div class="timeline-content" data-img="https://cdn.eso.org/images/banner1920/owl_still_a_cc.jpg" > <a class="timeline-anchor" id="timeline-quick-access-25"><</a> <a href="https://www.eso.org/public/news/eso0646/"> <div> <span class="timeline-content-year"> 11 Dec 2006 </span> <div class="timeline-content-title">Green light given for detailed ELT study</div> <p class="timeline-content-text">ESO Council decided to proceed with detailed studies for ELT. This study, with a budget of 57 million euro, made it possible to start the construction of the telescope. The preliminary design for the ELT shown here was published in 2006.</p> </a> </div> </div> </div> </div> </div> <div class="timeline-quick-access"> <div class="timeline-quick-access-container" > <a class="timeline-quick-access-link" id="timeline-quick-access-link-0" href="#timeline-quick-access-0"> <div class="timeline-quick-access-element-container"> 2028 (planned) <div class="timeline-quick-access-element-title" > ELT science verification </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-1" href="#timeline-quick-access-1"> <div class="timeline-quick-access-element-container"> 2028 (planned) <div class="timeline-quick-access-element-title" > Technical first light of the ELT </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-2" href="#timeline-quick-access-2"> <div class="timeline-quick-access-element-container"> 2027 (planned) <div class="timeline-quick-access-element-title" > Main mirror segments installation </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-3" href="#timeline-quick-access-3"> <div class="timeline-quick-access-element-container"> 2027 (planned) <div class="timeline-quick-access-element-title" > M5 mirror complete </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-4" href="#timeline-quick-access-4"> <div class="timeline-quick-access-element-container"> 2027 (planned) <div class="timeline-quick-access-element-title" > M4 adaptive unit complete </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-5" href="#timeline-quick-access-5"> <div class="timeline-quick-access-element-container"> 2027 (planned) <div class="timeline-quick-access-element-title" > Tertiary mirror complete </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-6" href="#timeline-quick-access-6"> <div class="timeline-quick-access-element-container"> 2026 (planned) <div class="timeline-quick-access-element-title" > Telescope structure complete </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-7" href="#timeline-quick-access-7"> <div class="timeline-quick-access-element-container"> 2026 (planned) <div class="timeline-quick-access-element-title" > Dome complete </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-8" href="#timeline-quick-access-8"> <div class="timeline-quick-access-element-container"> 2025 (planned) <div class="timeline-quick-access-element-title" > Secondary mirror complete </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-9" href="#timeline-quick-access-9"> <div class="timeline-quick-access-element-container"> 2023 <div class="timeline-quick-access-element-title" > First main mirror segment polished </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-10" href="#timeline-quick-access-10"> <div class="timeline-quick-access-element-container"> 2019 <div class="timeline-quick-access-element-title" > First 18 ELT Primary Mirror Blanks Arrive at Safran Reosc </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-11" href="#timeline-quick-access-11"> <div class="timeline-quick-access-element-container"> May 2018 <div class="timeline-quick-access-element-title" > Dome and main structure start </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-12" href="#timeline-quick-access-12"> <div class="timeline-quick-access-element-container"> 9 Jan 2018 <div class="timeline-quick-access-element-title" > First ELT main mirror segments successfully cast </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-13" href="#timeline-quick-access-13"> <div class="timeline-quick-access-element-container"> 25 May 2016 <div class="timeline-quick-access-element-title" > Contract awarded for construction of dome and main telescope structure </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-14" href="#timeline-quick-access-14"> <div class="timeline-quick-access-element-container"> 10 Dec 2015 <div class="timeline-quick-access-element-title" > Agreement Signed for MAORY </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-15" href="#timeline-quick-access-15"> <div class="timeline-quick-access-element-container"> 28 Sep 2015 <div class="timeline-quick-access-element-title" > Agreement Signed for METIS </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-16" href="#timeline-quick-access-16"> <div class="timeline-quick-access-element-container"> 23 Sep 2015 <div class="timeline-quick-access-element-title" > Agreement Signed for HARMONI </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-17" href="#timeline-quick-access-17"> <div class="timeline-quick-access-element-container"> 18 Sep 2015 <div class="timeline-quick-access-element-title" > Agreement Signed for MICADO </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-18" href="#timeline-quick-access-18"> <div class="timeline-quick-access-element-container"> 4 Dec 2014 <div class="timeline-quick-access-element-title" > Green light given for ELT construction </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-19" href="#timeline-quick-access-19"> <div class="timeline-quick-access-element-container"> 19 Jun 2014 <div class="timeline-quick-access-element-title" > Part of Cerro Armazones peak flattened to make space for ELT </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-20" href="#timeline-quick-access-20"> <div class="timeline-quick-access-element-container"> 14 Mar 2014 <div class="timeline-quick-access-element-title" > Construction begins on road to Cerro Armazones </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-21" href="#timeline-quick-access-21"> <div class="timeline-quick-access-element-container"> 27 Oct 2013 <div class="timeline-quick-access-element-title" > Land around Cerro Armazones donated to ESO for the ELT site </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-22" href="#timeline-quick-access-22"> <div class="timeline-quick-access-element-container"> 11 Jun 2012 <div class="timeline-quick-access-element-title" > ESO Council approves ELT programme </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-23" href="#timeline-quick-access-23"> <div class="timeline-quick-access-element-container"> 13 Oct 2011 <div class="timeline-quick-access-element-title" > ESO and Chile sign agreement on ELT </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-24" href="#timeline-quick-access-24"> <div class="timeline-quick-access-element-container"> 26 Apr 2010 <div class="timeline-quick-access-element-title" > Cerro Armazones selected as site for ELT </div> </div> </a> <a class="timeline-quick-access-link" id="timeline-quick-access-link-25" href="#timeline-quick-access-25"> <div class="timeline-quick-access-element-container"> 11 Dec 2006 <div class="timeline-quick-access-element-title" > Green light given for detailed ELT study </div> </div> </a> </div> </div> <footer class="container-fluid container-footer"> <div class="row d-flex align-items-center justify-content-between w-100"> <div class="col-12 col-lg-3 pb-3 pb-lg-0 d-flex align-items-center justify-content-center medium-light footer-item"> <a href="https:///www.eso.org/"><span class="esoblue">ESO</span></a> | ELT ©  <div id="current-year"> </div> <script> //Get Current year var today = new Date(); var year = today.getFullYear(); document.getElementById('current-year').innerHTML = 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