The ARGOS system propagating a bundle of laser beams on each side of the large binocular telescope. This wide-angle photograph was taken in 2017 with a 25 s exposure time. Each visible green beam in this image consists of three individual laser rays forming the wide-field constellations of guide stars in the atmosphere. The light pulses from the high-power lasers are subject to Rayleigh scattering by air molecules in the Earth’s atmosphere. Having the wavefront sensors gated and adjusted to receive the photons only from a distance of 12 km, a sharp reference beacon constellation is formed. Measuring the wavefronts and correcting the atmospheric ground-layer distortions with the two adaptive secondary mirrors yields a wide-field correction for imaging and spectroscopy.