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News Link • Science, Medicine and Technology

Ground based telescopes have surpassed Hubble Space Telescope in picture sharpness

• https://www.nextbigfuture.com, By brian wang

The MUSE Wide Field Mode coupled to GALACSI in ground-layer mode corrects for the effects of atmospheric turbulence up to one kilometre above the telescope over a comparatively wide field of view. But the new Narrow Field Mode using laser tomography corrects for almost all of the atmospheric turbulence above the telescope to create much sharper images, but over a smaller region of the sky.

The 8-meter UT4 reaches the theoretical limit of image sharpness and is no longer limited by atmospheric blur.

The same turbulence in the atmosphere that causes stars to twinkle to the naked eye results in blurred images of the Universe for large telescopes. Light from stars and galaxies becomes distorted as it passes through our atmosphere, and astronomers must use clever technology to improve image quality artificially.

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