Editing European Southern Observatory (section)

==== MPG/ESO 2.2-metre telescope ====
{{Main|MPG/ESO telescope}}

The 2.2-metre telescope has been in operation at La Silla since early 1984, and is on indefinite loan to ESO from the [[Max Planck Society]] ({{Lang|de|Max-Planck-Gesellschaft zur Förderung der Wissenschaften}}, or MPG, in German). Telescope time is shared between MPG and ESO observing programmes, while operation and maintenance of the telescope are ESO's responsibility.

Its instrumentation includes a 67-million-pixel wide-field imager (WFI) with a [[Field of view#Astronomy|field of view]] as large as the full moon,<ref>{{cite web |url=http://www.eso.org/lasilla/instruments/wfi/index.html |title=WFI—Wide Field Imager |access-date=2011-04-29 |archive-url=https://web.archive.org/web/20110902075709/http://www.eso.org/lasilla/instruments/wfi/index.html |archive-date=2011-09-02 |url-status=dead }}</ref> which has taken many images of celestial objects. Other instruments used are [[GROND]] (Gamma-Ray Burst Optical Near-Infrared Detector), which seeks the afterglow of gamma-ray bursts—the most powerful explosions in the universe,<ref>{{cite news |date=6 July 2007 |url=http://www.eso.org/public/news/eso0730/ |title=GROND Takes Off |publisher=ESO |access-date=2011-04-29 |archive-date=2020-05-23 |archive-url=https://web.archive.org/web/20200523172814/https://www.eso.org/public/news/eso0730/ |url-status=live }}</ref> and the high-resolution spectrograph FEROS (Fiber-fed Extended Range Optical Spectrograph), used to make detailed studies of stars.