This video shows how the Chilean Navy came across a UFO in the sky while on a routine patrol off the coast of Santiago. It tracks the craft for as long as it can & they even tried communicating with the craft but to no avail.

You can also clearly see in the video that whatever was in the sky that day, excreted a thermal gas or liquid into the atmosphere, as it was picked up on the thermal camera.

This is one of the most compelling UFO videos to date!