A disappearing piece of the sun, a dark vessel appearing below the Shuttle Endeavor and thousands of unidentified objects captured by Hubble are presented.

Astronaut Leroy Chao's experience in space, the Apollo capsule's pictures of a flying saucer and shadows caught on film following the shuttle are featured.

A far-off planet that could have an atmosphere similar to Earth's, an inexplicable glowing light from the moon and why Mars has blueberries are featured.

New discoveries about the structure of galaxies, stars and planets reveal a hidden kingdom of microscopic alien organisms like bacteria and viruses.

Cutting edge technology has revealed far-reaching planets that might have environments and elements just like Earth, so scientists work to study these worlds.

Jeremy investigates a new discovery about the Battle of Actium, which may shed new light on the truth behind one of history's most enigmatic defeats.

Jeremy enters a ground-breaking investigation of aircraft debris that may be connected to the infamous disappearance of Amelia Earhart.

Jeremy investigates an accident involving a Russian nuclear submarine on a top-secret mission and the surprising facts about the vessel's design.

Jeremy Wade explores the tragic sinking of the cruiseferry MS Estonia and investigates new footage that casts doubt on the official version of events.

Jeremey investigates the baffling disappearance of an Indonesian submarine and the latest research into underwater phenomenon that may have doomed the craft.

Jeremy Wade reveals a ground-breaking scientific find that may completely change how we think about the fate of the infamous Titanic.

Jeremy investigates a shipwreck that may hold stolen Nazi treasure, the exquisite hoard of lost furnishings from the 18th century Amber Room.

Investigators discover a haunting relic from a dark era - a palatial mansion inspired by gothic influences that was once home to Nazi experiments.

A group of experts utilizes innovative technology to analyze a peculiar sea fortress in icy waters that supposedly harbors a grim secret.

What was once a whimsical amusement park lay in ruins after falling victim to a strange collection of catastrophes that closed its doors permanently.

A war-ravaged Italian ghost town of ruins, which was immortalized by a legendary Hollywood director, is investigated by a group of experts.

The world's top ten abandoned structures are examined for further information about their history, their engineering, and why they fell into ruin.