External access to the UT2, UT3 and UT4 unities.
Keywords:
Antofagasta, antu, array, astronomer, astronomical observation, astronomy, atacama desert, Chile, Chile land of telescopes, daylight, desert, ESO, European Southern Observatory, observation, Paranal, Patricio Estay, sky, South America, telescopes, Very Large Telescope, Vlt, U
