Moonrise above North American Antenna at ALMA’s high site
The final North American ALMA antenna, number 25 of 25, rests under a setting Moon after a day of testing at the Operations Support Facility in northern Chile. The North American antennas in the Atacama Large Millimeter/submillimeter Array (ALMA) can be distinguished through two details with the wiring: The wiring touches the edge of the antenna’s dish and has a pattern of triangles underneath it, as you can see in the above photograph.
Credit: NRAO/AUI/NSF
