Create an 'artificial star' with four super strong laser beams

By using powerful laser beams to shoot at the sky from the Chilean Observatory, scientists from the European Space Research Agency in the Southern Hemisphere will create an artificial star in the sky , allowing the The previous optical system could overcome the blur caused by the Earth's atmosphere, making the telescope images sharper.

Called 4 Laser Guide Star Facility (4LGSF) , it will be the world's most advanced laser system, simultaneously firing 4 22W laser beams with a wavelength of 589 nanometers. Each beam will be 0.3 meters wide, big enough to be the "guide" task for previous space observation systems. It is known that this system was tested by engineers in early September last year and after it proved effective, it will be put into official application.

This system is called 4 Laser Guide Star Facility (4LGSF).

The project representative said: "4LGSF will project four 22W laser beams into the sky to create an artificial guide star by creating sodium molecules on the upper atmosphere. These atoms will light up. like a star, compensating for the brightness of previous optical systems, minimizing the blur caused by the Earth's atmosphere, enabling telescopes to capture sharper images. At the same time, 4 lasers will help control the turbulence of the atmosphere, thereby increasing the details, improving image quality, while enhancing the scope of observation than before. "