TV Guide Science

Experts explore an eerie complex of underground tunnels that snake beneath a volcano near the destroyed city of Pompeii that some believe lead to hell.

New discoveries reveal the purpose of a strange complex of tunnels on the grounds of an abandoned mansion that some believe is a gate to hell.

Experts explore the ruins of a once-palatial compound that contains the secrets of one of history's most notorious criminals and reveal why it was abandoned.

Ark of the Covenant may have been stolen by King Solomon's son and taken to Ethiopia thousands of years ago; archaeologists uncover the lost relic's journey.

An in-depth look is taken at the ruins of a gigantic, abandoned compound in snowy Alaska that indicate signs of an apocalyptic enigma.

The possibility of life on Mars as discovered by the Viking Lander, a Starship sighted in the Aurora Borealis and Moon Pigeons are featured.

A look is taken at spaceships powered by A-bombs, fake rings around a star, an incomplete transmission from the moon and lightning that talks to itself.

When NASA discovers something strange on Saturn's biggest moon, experts investigate if it could be caused by aliens feeding on the world's electric atmosphere.

Gravitational waves help scientists explore the cosmos in revolutionary, new ways and the discoveries they make are revealing the universe's greatest mysteries.

Data collected during the Rosetta mission's groundbreaking journey to land on a comet for the first time in human history reveals answers about life on Earth.

A Montana rancher discovers a fossil on his family's land that has the potential to be a rare, valuable find; a triceratops horn is found in Wyoming.

Clayton Phipps continues his excavation of a rare dinosaur on his ranch; Mike Harris and his son, Jake, prepare to sell their treasured T-Rex fossil.

Clayton Phipps and his crew flip a fossil that weighs 20,000 pounds out of the ground and onto a flatbed truck, so they can take it to the lab for analysis.

Clayton hauls a 20,000-pound dinosaur fossil more than 200 miles to a laboratory, where he hopes it will be accurately identified.

Clayton returns to his Montana ranch with his carnivore fossil finally at the lab; Mike Harris and his crew continue excavating their triceratops site.

Clayton Phipps finds out if his carnivore skeleton belongs to a T-Rex or nanotyrannus; Mike Harris and Aaron Bolan dig at a promising new site in Wyoming.

Experts explore a monster graveyard discovered at a mysterious site in the Gobi Desert, and this groundbreaking find contains the treasures of the alien beast.

Experts investigate and uncover a controversial research facility in the desert landscape of Arizona designed to prepare humanity for life on another world.

Experts investigate and reveal revolutionary hunting techniques developed by the oldest surviving Norwegian tribe on the remote, frozen landscape.

A mysterious ghost ship with connections to the mob suddenly appears on a California beach; strange markings could be a coded message.

Experts believe strange mounds discovered in Transylvania, Romania could be the burial site of the tyrant thought to have inspired the infamous Dracula.

New evidence may reveal the hiding place of the billion-dollar Nazi gold train; the history of the Vikings is debated after a lost settlement is discovered.

A strange structure shaped like a shark may lead to the discovery of a lost civilization's Fountain of Youth; something unexpected is discovered in a hurricane.

Experts believe strange mounds discovered in Transylvania, Romania could be the burial site of the tyrant thought to have inspired the infamous Dracula.

New evidence may reveal the hiding place of the billion-dollar Nazi gold train; the history of the Vikings is debated after a lost settlement is discovered.

A strange structure shaped like a shark may lead to the discovery of a lost civilization's Fountain of Youth; something unexpected is discovered in a hurricane.

A mysterious ghost ship with connections to the mob suddenly appears on a California beach; strange markings could be a coded message.

Clayton Phipps finds out if his carnivore skeleton belongs to a T-Rex or nanotyrannus; Mike Harris and Aaron Bolan dig at a promising new site in Wyoming.

Experts explore a monster graveyard discovered at a mysterious site in the Gobi Desert, and this groundbreaking find contains the treasures of the alien beast.