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Since this still lacks scientific confirmation, rampant speculation continues about potential extra-terrestrial theories for these "trumpet noises." But don't count NASA as a UFO-doubter just yet.
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.
Quindar tones were named for the manufacturer Quindar Electronics, Inc., now QEI. Glen Swanson, historian at NASA's Johnson Space Center who edited the Mission Transcript Collection, and Steve Schindler, an engineer with voice systems engineering at NASA's Kennedy Space Center, confirmed the origin of the name. "Quindar tones, named after the ...
A white noise machine is a device that produces a noise that calms the listener [citation needed], which in many cases sounds like a rushing waterfall or wind blowing through trees, and other serene or nature-like sounds. Often such devices do not produce actual white noise, which has a harsh sound, but pink noise, whose power rolls off at ...
NASA said the pulsing sound was the result of feedback on the speakers. It's the latest in a saga that unexpectedly kept two astronauts in space since June. On Saturday, NASA astronaut Butch ...
A mysterious sound heard emanating from the Boeing Starliner spacecraft has been identified as feedback from a speaker, NASA said in a statement Monday, assuring the capsule's autonomous flight ...
Trumpet 5 is allegedly the second satellite of a new series. Its tasks are believed to be signals intelligence and early warning, using a SBIRS HEO-2 infrared missile early warning package. In addition it is supposed to carry a NASA/Los Alamos TWINS-B magnetospheric research payload.
The launch pad built by the Soviet Union beginning in 1978 at the Baikonur Cosmodrome for launching the Energiya rocket included an elaborate sound suppression system which delivered a peak flow of 18 cubic metres (4,800 US gal) per second fed by three ground level reservoirs totaling 18,000 cubic metres (4,800,000 US gal).