![Drone view of the 4 Lasers of the Very Large Telescope at Paranal Observatory, Atacama desert Chile - YouTube Drone view of the 4 Lasers of the Very Large Telescope at Paranal Observatory, Atacama desert Chile - YouTube](https://i.ytimg.com/vi/gdBP3sIKL4E/maxresdefault.jpg)
Drone view of the 4 Lasers of the Very Large Telescope at Paranal Observatory, Atacama desert Chile - YouTube
ESO Astronomy - ESO's Very Large Telescope (VLT) counteracts the blurriness of stars caused by the atmosphere through use of the 4 Laser Guide Star Facility (4LGSF). The 4LGSF sends four laser
![MPB Communications Inc. Shares Prestigious Award Celebrating Advancement in the Application of Laser Light MPB Communications Inc. Shares Prestigious Award Celebrating Advancement in the Application of Laser Light](https://mpbcommunications.com/images/news_images/16fkc16776-cc-2.jpg)
MPB Communications Inc. Shares Prestigious Award Celebrating Advancement in the Application of Laser Light
![English: A laser beam shoots out of Yepun, the fourth Unit Telescope of Europe's flagship observatory, ESO's Very Large Telescope (VLT). This beam is used to create an artificial star above Paranal English: A laser beam shoots out of Yepun, the fourth Unit Telescope of Europe's flagship observatory, ESO's Very Large Telescope (VLT). This beam is used to create an artificial star above Paranal](https://c8.alamy.com/comp/2BAMB1N/english-a-laser-beam-shoots-out-of-yepun-the-fourth-unit-telescope-of-europes-flagship-observatory-esos-very-large-telescope-vlt-this-beam-is-used-to-create-an-artificial-star-above-paranal-to-assist-the-adaptive-optics-instruments-on-the-vlt-adaptive-optics-is-a-technique-that-allows-astronomers-to-overcome-the-blurring-effect-of-the-atmosphere-and-obtain-images-almost-as-sharp-as-would-be-possible-if-the-whole-telescope-were-placed-in-space-above-earths-atmosphere-adaptive-optics-however-requires-a-nearby-reference-star-that-has-to-be-relatively-bright-thereby-limiting-the-a-2BAMB1N.jpg)
English: A laser beam shoots out of Yepun, the fourth Unit Telescope of Europe's flagship observatory, ESO's Very Large Telescope (VLT). This beam is used to create an artificial star above Paranal
![Laser Guide Star For Very Large Telescope Photograph by European Southern Observatory/science Photo Library - Fine Art America Laser Guide Star For Very Large Telescope Photograph by European Southern Observatory/science Photo Library - Fine Art America](https://images.fineartamerica.com/images-medium-large-5/1-laser-guide-star-for-very-large-telescope-european-southern-observatoryscience-photo-library.jpg)