by onlooker » Thu 18 Feb 2016, 09:03:00
How about this strange noises being heard around the world for about a decade and nobody has a solid explanation. http://www.dailymail.co.uk/travel/trave ... ation.html
Some of them have a similarity to the strange noises heard by Apollo 10 Astronauts?
http://phys.org/news/2016-02-nasa-stran ... nauts.html
Also brings to mind the Whale Probe sound from Star Trek: The Voyage Home.
https://www.youtube.com/watch?v=1-vREvJHH9Y