Milky Way Galaxy and Holography Tower at ALMA OSF

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Milky Way Galaxy and Holography Tower at ALMA OSF

The red light at the top of the holography tower backlights the ALMA sign at the Operations Support Facility (OSF) while the core of the Milky Way Galaxy stands watch. The holography system is used to precisely calibrate the surface of the ALMA antennas.

Credit: NSF/ AUI/ NSF NRAO/ B.Foott

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