![English: A 360 degree view of a rare cloudscape over La Silla, in the southern edges of the Atacama Desert, home of ESO's first observing site. Here ESO operates three major telescopes: English: A 360 degree view of a rare cloudscape over La Silla, in the southern edges of the Atacama Desert, home of ESO's first observing site. Here ESO operates three major telescopes:](https://c8.alamy.com/comp/2BAMARG/english-a-360-degree-view-of-a-rare-cloudscape-over-la-silla-in-the-southern-edges-of-the-atacama-desert-home-of-esos-first-observing-site-here-eso-operates-three-major-telescopes-the-36-metre-telescope-the-new-technology-telescope-and-the-22-metre-max-planck-eso-telescope-they-are-equipped-with-state-of-the-art-instruments-such-as-harps-the-best-extrasolar-planet-finder-in-the-world-the-dome-in-the-centre-of-the-image-belongs-to-the-eso-36-metre-telescope-commissioned-in-1977-and-completely-upgraded-in-1999-and-to-which-harps-is-mounted-at-the-far-right-of-the-image-is-the-15-2BAMARG.jpg)
English: A 360 degree view of a rare cloudscape over La Silla, in the southern edges of the Atacama Desert, home of ESO's first observing site. Here ESO operates three major telescopes:
![Smithsonian Insider – HARPS-N instrument will help confirm Kepler's planet finds | Smithsonian Insider Smithsonian Insider – HARPS-N instrument will help confirm Kepler's planet finds | Smithsonian Insider](https://insider.si.edu/wp-content/uploads/2011/02/kepler.jpg)
Smithsonian Insider – HARPS-N instrument will help confirm Kepler's planet finds | Smithsonian Insider
![ESO 3.6m telescope & HARPS at Cerro LaSilla, Chile, 600 km north of Santiago de Chile at an altitude of 2400 metres. | sciencesprings ESO 3.6m telescope & HARPS at Cerro LaSilla, Chile, 600 km north of Santiago de Chile at an altitude of 2400 metres. | sciencesprings](https://sciencesprings.files.wordpress.com/2015/07/eso-3-6m-telescope-harps-at-lasilla1.jpg)
ESO 3.6m telescope & HARPS at Cerro LaSilla, Chile, 600 km north of Santiago de Chile at an altitude of 2400 metres. | sciencesprings
![A micro-alignment telescope in the HARPS-N Laboratory of the UK Astronomy Centre, Royal Observatory, Edinburgh Stock Photo - Alamy A micro-alignment telescope in the HARPS-N Laboratory of the UK Astronomy Centre, Royal Observatory, Edinburgh Stock Photo - Alamy](https://c8.alamy.com/comp/CB9NR8/a-micro-alignment-telescope-in-the-harps-n-laboratory-of-the-uk-astronomy-CB9NR8.jpg)
A micro-alignment telescope in the HARPS-N Laboratory of the UK Astronomy Centre, Royal Observatory, Edinburgh Stock Photo - Alamy
![ESO Chile on Instagram: “Un día como hoy, hace 20 años, ¡el instrumento HARPS de ESO logró su primera luz! Instalado en el telescopio de 3,6 m de nuestro…” ESO Chile on Instagram: “Un día como hoy, hace 20 años, ¡el instrumento HARPS de ESO logró su primera luz! Instalado en el telescopio de 3,6 m de nuestro…”](https://scontent-atl3-1.cdninstagram.com/v/t51.2885-15/334818544_227931232961262_6592616539304942794_n.jpg?stp=dst-jpg_e15&_nc_ht=scontent-atl3-1.cdninstagram.com&_nc_cat=106&_nc_ohc=mvQcD2LatuoAX-zlEY5&edm=ABmJApABAAAA&ccb=7-5&ig_cache_key=MzA1NTY1MjcyMjYwODM5NTI1OA%3D%3D.2-ccb7-5&oh=00_AfCIhdeTdFw-ghMJkS1zD8ZC0l9DYt3ukwr8T9fBuC2HCw&oe=6454D2DD&_nc_sid=6136e7)
ESO Chile on Instagram: “Un día como hoy, hace 20 años, ¡el instrumento HARPS de ESO logró su primera luz! Instalado en el telescopio de 3,6 m de nuestro…”
![Miden por primera vez con el espectrógrafo HARPS-N del Telescopio Nazionale Galileo la masa de un exoplaneta del tamaño de Neptuno Miden por primera vez con el espectrógrafo HARPS-N del Telescopio Nazionale Galileo la masa de un exoplaneta del tamaño de Neptuno](https://static.eldiario.es/clip/1e1b28c9-9599-4ab4-a093-87bb505bc7f4_twitter-watermarked-aspect-ratio_default_0.jpg)
Miden por primera vez con el espectrógrafo HARPS-N del Telescopio Nazionale Galileo la masa de un exoplaneta del tamaño de Neptuno
![ESO Chile on Instagram: “Un día como hoy, hace 20 años, ¡el instrumento HARPS de ESO logró su primera luz! Instalado en el telescopio de 3,6 m de nuestro…” ESO Chile on Instagram: “Un día como hoy, hace 20 años, ¡el instrumento HARPS de ESO logró su primera luz! Instalado en el telescopio de 3,6 m de nuestro…”](https://scontent-atl3-2.cdninstagram.com/v/t51.2885-15/335487716_735619114855679_7557244591948582456_n.jpg?stp=dst-jpg_e15&_nc_ht=scontent-atl3-2.cdninstagram.com&_nc_cat=111&_nc_ohc=D5huklNoNKIAX_wvlpO&edm=ABmJApABAAAA&ccb=7-5&ig_cache_key=MzA1NTY1MjcyMjA5NjY0MjE0MQ%3D%3D.2-ccb7-5&oh=00_AfDosXIiF5RKhPYoK7FHEK_JE5lcgwhbitPb7EyxEGAdUg&oe=6455E4A8&_nc_sid=6136e7)