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Upsweep is an unidentified sound detected on the American NOAA's equatorial autonomous hydrophone arrays. This sound was present when the Pacific Marine Environmental Laboratory began recording its sound surveillance system, SOSUS, in August 1991. It consists of a long train of narrow-band upsweeping sounds of several seconds in duration each.
Unidentified drones have been reported in the United States for several years prior to current 2024 reports. [25] In late 2019 and 2020, there was a wave of reports of sightings over Colorado and Nebraska. [26] [27] In December 2023, multiple unidentified drone incursions were reported at Langley Air Force Base in Virginia.
Pages in category "Unidentified sounds" The following 11 pages are in this category, out of 11 total. ... This page was last edited on 28 February 2024, ...
Moneymaker said the October 2023 incident was deemed credible after ruling that species known in the area would not have been able to emit the “strange unidentified sound” that was reported.
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Banging sounds coming from the Titan search zone briefly raised hopes, before the rising submersible was confirmed to have been destroyed in a ‘catastrophic implosion’.
Unidentified sounds (11 P) U. Unidentified flying objects (5 C, 7 P) W. Anomalous weather (19 P) ... This page was last edited on 19 July 2024, ...
Upsweep is an unidentified sound detected by the U.S. National Oceanic and Atmospheric Administration's (NOAA) equatorial autonomous hydrophone arrays. The sound was recorded in August, 1991, using the Pacific Marine Environmental Laboratory's underwater sound surveillance system, SOSUS .