NASA’s scientist remain baffled at the bizarre hissing sounds picked up miles from Earth by a NASA student ballon. One person who heard the strange sounds said that it was something out of the X-Files. Daniel Bowman is a graduate student at North Carolina at Chapel Hill. He captured the sounds aboard the balloon using infrared microphones. Mr. Bowman designed the equipment and also built it. Human ears cannot hear the sounds below 20 hertz unless they are sped up. Daniel Bowman launches a NASA student ballon. Image: geosci.unc.edu Infrasonic sound Low frequency sounds can travel long distances. They can also be caused naturally by phenomena such as earthquakes or storms. Scientists are not able to determine where the sounds came from in this instance. Scientists say this is the first instance of these sounds being captured high in our atmosphere. NASA plans to send more balloons to further investigate the matter. The strange sounds could have been caused by something. LiveScience says scientists offer the following theories to explain strange sounds: The signals could have come from an under-the-ballon’s flight path wind farm, – low-frequency sounds could be created by ocean waves, which could have been the cause, – wind turbulence and the balloon cable vibrating, – gravity waves and clear air turbulentence. Mr. Bowman stated to LiveScience that he was amazed by the complexity of the signal. “I expected to see only a few small stripes.” Video – Eerie infrasound recordings
NASA baffled by strange whistling sound 22 miles high
