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ArcticThunder

25 MARCH 2020 / Pix of the day

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             VLT's Laser Guide Star

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(Image credit: Petr Horálek/ESO

Except from space.com

 

Wednesday, March 25, 2020: The European Southern Observatory's Very Large Telescope (VLT) beams its laser guide star into the night sky over Chile, creating a beam of light that arcs above the Milky Way galaxy. Astronomers use giant laser beams like these to help their telescopes correct for the distortion caused by turbulence in Earth's atmosphere, which can make stars appear to twinkle. For observations at the VLT, astronomers rely on the Laser Guide Star Facility at the Paranal Observatory in Chile. Pictured in the foreground are four domes of the SPECULOOS Southern Observatory. — Hanneke Weitering

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