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Why do telescopes shoot lasers?

Turbulence in our atmosphere blurs images of the cosmos, but astronomers have a trick up their sleeve: adaptive optics. Using powerful lasers and fast deformable mirrors we can correct this blurring in real time and obtain extremely sharp astronomical images. In this episode of Chasing Starlight we show you how this amazing technology works and how it’s implemented in our telescopes. 00:00 - Intro 01:23 - How does it work? 03:36 - Creating artificial stars Credit: ESO Directed by: L. Calçada, M. Kornmesser Hosted by: S. Randall Written by: H. Huysegoms Editing: M. Kornmesser, L. Calçada Videography: A. Tsaousis Animations & footage: ESO, E. Garcés, L. Calçada, M. Kornmesser, Nick Risinger, Microgate, P. Weilbacher (AIP), P. Horálek, Roland Bacon, Zdeněk Bardon, C. Malin, M. Zamani, A. de Burgos Sierra, CIMOLAI, S. Petković, E. Garcés, ESA, J. C. Muñoz-Mateos, S. Guisard, Focuslight Music: VIDEVO Web and technical support: E. Arango, R. Y. Shida Scientific consultant: P. Amico Promotion: O. Sandu Filming Locations: ESO Supernova (supernova.eso.org) Produced by ESO, the European Southern Observatory (eso.org) Return of the Jedi: ©︎ Lucasfilm Ltd. 20th Century-Fox Richard Marquand (director), Howard Kazanjian (producer), George Lucas (story) Austin Powers: International Man of Mystery (1997) New Line Cinema, New Line Productions, Moving Pictures, Eric's Boy, KC Medien Jay Roach (director), Suzanne Todd, Demi Moore, Jennifer Todd, Mike Myers (producer) Independence Day (1996) 20th Century Fox, Centropolis Entertainment Roland Emmerich (director), Dean Devlin (producer) Discover more from ESO: Learn the gist of the latest discoveries and updates from ESO:    • A planet in a perpendicular orbit around t...   Discover the telescope that will makes us rethink our place in the cosmos:    • Installing the giant doors of the Extremel...   Enjoy breathtaking views of astronomical objects:    • Fly through the Sh2-46 nebula   Travel to the location of astronomical objects on the night sky:    • Travel to 2M1510 (AB) b, a planet in a per...   #ESO #europeansouthernobservatory #astronomy #science