ESO（European Southern Observatory）がVLT超大型望遠鏡（Very Large Telescope）の画像を公開し、ハッブル宇宙望遠鏡（Hubble Space Telescope）と同等もしくはよりシャープな画像を撮影することが可能のようです。
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Trapped by lasers — ESO Picture of the Week.⠀ The intense orange beams dominating this image originate from the 4 Laser Guide Star Facility, a component of the Adaptive Optics Facility of ESO’s Very Large Telescope (VLT). Each beam is some 4000 times more powerful than a standard laser pointer! Each creates an artificial guide star by exciting sodium atoms high in the Earth’s upper atmosphere and causing them to glow. This helps astronomers measure and correct for atmospheric distortion, giving the VLT a crystal-clear view of the cosmos.⠀ ⠀ Image credit: ESO/G. Hüdepohl (atacamaphoto.com)⠀ ⠀ #eso #universe #astronomy #stars #paranal #vlt⠀ #photogram
Supersharp images of planet #Neptune from new VLT Adaptive Optics. The pioneering #MUSE instrument in Narrow-Field Mode, working with the #GALACSI adaptive optics module, can now use a new technique called laser tomography to correct for turbulence at different altitudes in the atmosphere. This allows ESO to capture images from the ground at visible wavelengths that are sharper than those from the NASA/ESA #Hubble Space Telescope. Image credit: ESO /P. Weibacher (AIP) #eso #universe #astronomy #paranal #vlt #photogram
ESOcast 172 Light: Supersharp Images from New VLT Adaptive Optics (4K UHD)
ESO’s Very Large Telescope (VLT) has achieved first light with a new adaptive optics mode called laser tomography — and has captured remarkably sharp test images of the planet Neptune, star clusters and other objects. The pioneering MUSE instrument in Narrow-Field Mode, working with the GALACSI adaptive optics module, can now use this new technique to correct for turbulence at different altitudes in the atmosphere. It is now possible to capture images from the ground at visible wavelengths that are sharper than those from the NASA/ESA Hubble Space Telescope. The combination of exquisite image sharpness and the spectroscopic capabilities of MUSE will enable astronomers to study the properties of astronomical objects in much greater detail than was possible before. This ESOcast gives a taste of these remarkable results. The video is available in 4K UHD. The ESOcast Light is a series of short videos bringing you the wonders of the Universe in bite-sized pieces. The ESOcast Light episodes will not be replacing the standard, longer ESOcasts, but complement them with current astronomy news and images in ESO press releases.
— ESO (@ESO) 2018年7月19日
— ALMA Observatory (@almaobs) 2018年7月20日