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" ... This 2-panel shows observations of the Galactic Center with and without Adaptive Optics, ... [+] illustrating the resolution gain. Adaptive optics corrects for the blurring effects of the Earth's atmosphere. Using a bright star, we measure how a wavefront of light is distorted by the atmosphere and quickly adjust the shape of a deformable mirror to remove these distortions. This enables individual stars to be resolved and tracked over time, in the infrared, from the ground. ... "
" ... This 2-panel shows observations of the Galactic Center with and without Adaptive Optics,... [+] illustrating the resolution gain. Adaptive optics corrects for the blurring effects of the Earth's atmosphere. Using a bright star, we measure how a wavefront of light is distorted by the atmosphere and quickly adjust the shape of a deformable mirror to remove these distortions. This enables individual stars to be resolved and tracked over time, in the infrared, from the ground. ... "