Inside an azimuth bearing of a VLA telescope

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Inside an azimuth bearing of a VLA telescope

Over time, the azimuth bearing of a Very Large Array antenna needs cleaning out and repairing. Here, technicians work inside the base of a separated antenna to remove worn rollers. The upper, dish half of the antenna is braced on the dark platform at far left where another technician inspects it for wear and tear.

Credit: 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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