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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.
These strange waves of space radiation last only a few tenths of a second with a characteristic increasing frequency, ... was key for these strange sounds to emerge. But now, researchers have ...
Cosmic noise, also known as galactic radio noise, is a physical phenomenon derived from outside of the Earth's atmosphere.It is not actually sound, and it can be detected through a radio receiver, which is an electronic device that receives radio waves and converts the information given by them to an audible form.
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.
“They are one of the strongest and most significant waves in space,” said study author Chengming Liu from Beihang University in an email. The newfound chorus waves were detected in a region where Earth's magnetic field is stretched out, which scientists didn't expect. That raises fresh questions about how these chirping waves form.
The BBC reports, however, that there are "sounds of space." Other astronauts have had similar experiences of hearing unexplainable sounds. This whistling sound is an example ...
Unidentified sounds (11 P) U. Unidentified flying objects (5 C, 8 P) W. Anomalous weather (19 P) Pages in category "Unexplained phenomena"
CMEs generate plasma shock waves in space, similar to the sonic boom caused by aircraft flying faster than the speed of sound in Earth's atmosphere. The solar wind 's equivalent of a sonic boom in the solar-system plasma medium can accelerate protons up to millions of miles per minute – as much as 40 percent of the speed of light.