World's Largest Telescope Rises in Chile

Gazing at the stars has always been a magical and inspiring human pursuit. In the Atacama Desert, one of the best locations on Earth for viewing the night sky, the European Southern Observatory (ESO) is constructing the Extremely Large Telescope (ELT), a scientific marvel poised to transform our understanding of the universe. When completed, the ELT will stand as the world's largest optical telescope, an engineering feat of unprecedented scale.
An ethereal photograph captured by ESO's public live webcam showcases the ELT worksite illuminated by the Milky Way. The image captures the half-constructed dome and support beams that form the base of this instrument. The outlines of the telescope's massive dome doors are beginning to take shape. These doors will play a crucial role in protecting the telescope's delicate optics from harsh desert conditions, including dust particles and strong winds, while allowing it to observe the universe with unparalleled precision.
The ESO's live build webcam offers a sense of the massive scale of the project. The completed ELT dome will reach a height of 80 meters, comparable to the height of Big Ben without its spire. The ELT will gather more light than any existing optical telescope, providing scientists with unprecedented views of the cosmos. This will allow research into how the first galaxies formed to studying the atmospheres of exoplanets for signs of life.
The public can witness the ELT's construction through ESO's live webcam facility. This allows anyone to observe the project's progress, from the installation of each bolt to the leveling of every beam. The ELT is more than just a technological advancement; it embodies humanity's enduring pursuit of knowledge about the universe. Against the backdrop of pristine night skies, the telescope symbolizes a bridge between the past and the future, connecting Earth to the cosmos. As construction advances, the telescope reminds us that even the greatest achievements start with the placement of steel beams, all under the watchful eyes of the stars.