* Astronomy

 Laser Guide Star at VLT to shine brighter light on stars

It does not twinkle, a rare characteristic for a star.
It appears suddenly over the southern hemisphere, a new neighbour in the crowded black sky.
But this "star" is not a real one.
Created by a powerful laser beam, it can be made to shine to order by the astronomers at the Paranal Observatory in Chile's Atacama Desert.
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