A strange, flying object is outside an East Germany apartment complex... and then the light moves to the window.

An Australian ranch hand races to protect his herd from a nearby object that is hovering directly over his water tower.

A biochemist watches a mysterious craft land in his yard, presenting an opportunity to scientifically examine the unexpected item.

In Danbury, Conn., a crowd observes a triangular craft in the air. It was part of a wave of sightings in the Hudson Valley, where more than 5000 similar events were reported between 1983 and 1986.

These are the stories that have captivated experts and researchers' imaginations. These are the Close Encounters

This sneak peek of Science Channel's new series, starts with Malaysian Airlines Flight 370 which disappeared without a trace in March, 2014.

Modern aircraft are tracked by multiple systems in flight. Transponders connect with radar, and ACARS transmits signals between ground stations and satellites. In MH370, both were turned off; experts believe a person had to do it.

A hacker who worked his way into critical routing, fuel and other avionics over 20 times via in-flight entertainment, believes a smart hijacker could have used the same tactic to re-route Flight MH370 to a top secret location.

Flight MH370 vanished without a trace but with plenty of theories. One is the strong possibility a cargo of lithium-ion batteries, known to spontaneously combust and burn at high temperatures, could have brought the plane down.

60 years ago, scientists discovered evidence of an eruption 3,000 years ago that wiped out an entire city? Could this be evidence of Atlantis?

Two Atlantis hunters use a computer program that analyzes the 51 clues provided by Plato's writing to objectively target a location for the that vanished in a day.

Something spooked nine experienced hikers out of their tent on snowy night to their deaths. Missing clothes, shoes and some bodies horribly disfigured, an expert with their last writings finds nothing pointing to trouble.

Scientists struggle to find a cause for terrifying rogue waves that can happen even on a clear day.

For many years people told tales of seeing an ancient ship deep in the desert of California. Could this petroglyph provide proof it existed?

Scientists study winds and tides to see if anyone could make it to shore.

Dangerous riptides force even Olympic swimmers to turn back; could convicts have survived?