Night at the OSF

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Night at the OSF

Two North American 12-meters sit under the stars at the ALMA Operations Support Facility (OSF). Towards the left of the image in the distance is the Holography Tower. The antennas are able to receive a signal from this tower and use it to make a map of their surfaces. The individual panels that make up their surface can then be adjusted so that the surface is as close to being perfect parabola as possible.

Credit: Carlos Padilla

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