Giant Ducks in a Row

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Giant Ducks in a Row

The North Arm of the Very Large Array shows perfectly aligned 25-meter antennas in their stowed position. This is D-configuration, when all 27 antennas of the VLA sit on the piers closest together, forming an array only 1km in diameter.

Credit: W. Grammer, NRAO/AUI/NSF

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The National Radio Astronomy Observatory is a facility of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.
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