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Thanks to a new photographic instrument, ESO, this European Southern Observatory, was able to obtain the most accurate image of Neptune from the Earth, in northern Chile. This is the first time scientists have been able to take such a clear picture of a planet in our solar system from a terrestrial telescope – most of the images have been from space telescopes.
S ' it is more complicated to obtain a clear image of the stars from Earth than from space, it is because of our atmosphere. The same atmospheric turbulence that makes the stars twinkle during observations with the naked eye also tends to make the objects of the distant Universe more fuzzy through the large telescopes.
But the ESO was able to find the parade through to laser tomography. This new optical technique makes it possible to compensate the effects of turbulence with unparalleled precision. The deformable mirrors of the telescope can adapt to the hazards of our gas envelope and change position up to 1000 times per second.
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