Strange seas

In 1997, in a remote point in the south Pacific Ocean, just west of the southern tip of South America an incredibly powerful ultra-low-frequency noise is picked up by hydrophones monitored by the NOAA. We think sideways in hopes that it will help us to discover the source of this unexplained sound.

Some of Our Research:
Wired’s take
A light version
The Wiki
Some Interesting facts

It's the aliens, Unexplained deaths

Dyatlov

In the late 1950s, a group of Russians who were very experienced ski-hikers were discovered to have died on the slopes of the Mountain of Death, some of them frozen to death and others dead from massive physical trauma. They left their camp in the middle of the night, some without clothing or shoes, in sub-zero weather. What terror caused them to flee to their deaths?

Some of our research:
A practical review
Crackeds’ take on things
Wiki post