Part of the delegation of the United States Congress that visited the antenna array at the ALMA Operations Site, located at 5,000 meters altitude, in the Chajnantor Plateau. Credit: D. Vidal, - ALMA (ESO/NAOJ/NRAO)
Part of the delegation of the United States Congress that visited the antenna array at the ALMA Operations Site, located at 5,000 meters altitude, in the Chajnantor Plateau. Credit: D. Vidal, - ALMA (ESO/NAOJ/NRAO)