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

The CIA devises a revenge plot after the Soviet Union unveils its own space shuttle; recent discovers shed light on the destruction of Sodom and Gomorrah.

Images capture a strange structure on Mars; files from the first Apollo mission show a bizarre sighting; a planet-eating star gives a glimpse of Earth's future.

New discoveries uncover the universe's dark and violent past, including how the Earth and planets were formed from the destruction of strange alien worlds.

Experts explain how spacetime is the secret structure that controls time, light and energy and is what will determine the fate of the universe.

Experts attempt to explain a mysterious UFO encounter in the Bermuda Triangle as they investigate whether aliens have visited the strange stretch of water.

Experts investigate the common yet strange sightings of mysterious lights and orbs in the Bermuda Triangle, and uncover underwater alien anomalies.

A team of experts track evidence of a legendary sea monster that's rumored to live in the underwater caves of the Bermuda Triangle.

The mysterious disappearance of 306 U.S. Navy crewman in the Bermuda Triangle is examined as experts attempt to uncover the truth.

Experts examine the disappearance of five U.S. Navy planes that mysteriously vanished over the Bermuda Triangle, which fueled rumors that the water is cursed.

Experts investigate the wreckage of a mysterious shipwreck in an attempt to identify the missing vessel and determine what happened the day it sank.

Experts follow a new lead regarding the mystery of the Witchcraft, one of the most bizarre disappearances in the Bermuda Triangle.

A team of experts uses innovative underwater technology to explore supposed ghost ships in the Bermuda Triangle as they attempt to explain sightings.

Experts investigate strange sightings from space, including hundreds of shipwrecks in the middle of a desert in Africa and a ghost town.

When a strange pattern appears in a field, experts investigate if it could be an extraterrestrial response to a message sent to an alien star cluster in 1974.

Experts explore strange sightings from space, including evidence of a mysterious 5,000-year-old structure in Ireland and a machine that can see back in time.

Experts utilize innovative technology as they take an in-depth look at ominous mysteries dealing with space and clandestine locations.