Milk Bottle on the Dish: An Impossible Signal at Antelope Mesa
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Milk Bottle on the Dish: An Impossible Signal at Antelope Mesa
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A single glass milk bottle sat motionless at the center of a forty-foot radio dish tilted thirty degrees from horizontal with no one on staff placing it there-how did it stay? When a tiny calibration offset widened Laura McCarthy’s receiver bandwidth and revealed a hidden pattern inside a pulsar she had monitored for six years, questions multiplied: what was encoded, who left the bottle, and how did a gate counter fail to record an overnight visitor?
In this episode, we follow the sequence of events on Antelope Mesa from November 4 to November 19, 2019, detailing the dish repair, the gate logs, the discovery in stellar data, and the mysterious physical evidence that arrived at the observatory-what threads connect the data anomaly, a mailed index card, and an unregistered night entry?
Person: Laura McCarthy
Date: November 19, 2019 (bottle discovered); November 17-18, 2019 (unregistered entry)
Location: Antelope Mesa, eastern Nevada
Event: Bearing replacement locked elevation motor (dish fixed at ~30°) on November 4, 2019
Investigation: Fourteen-month independent investigation by journalist Carol Dalton
- The dish is a forty-foot single-dish radio telescope tilted roughly thirty degrees from horizontal during the events.
- Laura McCarthy monitored a pulsar with a period of 1.4 seconds and had worked at Antelope Mesa since spring 2013 (six years by 2019).
- Technician Marcus Odum performed a bearing replacement on November 4, 2019, and the gate counter recorded three entries through November 15, 2019.
- At 11:52 p.m. on November 18, 2019, an anomalous signal appeared in an expanded receiver bandwidth caused by a 0.003 gain offset.
- An index card arrived by mail containing seven numbers, one matching an instrument anomaly that McCarthy had never reported.
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