(Paranal Observatory) In mid-August 2010 a group of astronomers were observing the centre of the Milky Way using the laser guide star facility at Yepun, one of the four Unit Telescopes of the Very Large Telescope (VLT). Yepun’s laser beam crosses the majestic southern sky and creates an artificial star at an altitude of 90 km high in the Earth`....
Found on http://en.wikipedia.org/wiki/Tal`ianky
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