Friday, July 18th TV listings for Science HD
How the Universe Works Mystery of Planet 9
Scientists have discovered a mysterious ninth planet ten times the size of Earth on the very edge of the solar system; this strange world could have moons with extraterrestrial life.
How the Universe Works Secret History of Pluto
The first close-up images of Pluto reveal unimaginable secrets; scientists investigate if Pluto is home to a warm ocean of liquid water beneath its surface and whether this underground ocean could harbor life.
Underground Marvels Cincinnati's Secret Caverns
Deep beneath the streets of Cincinnati lies a network of deserted tunnels and caverns that contain a remarkable history of the city's origins, and now, experts investigate to reveal who built this underground labyrinth and why it was abandoned.
Underground Marvels Hotel Bunker of the Apocalypse
The top-secret construction of a massive nuclear bunker remained concealed under a palatial West Virginia hotel for decades; experts reveal how this vast subterranean structure was one of the most closely guarded Cold War secrets in U.S. history.
Underground Marvels Murder Raid Tunnels
Hidden beneath the town of Ramsgate, England, lies a hidden network of over three miles of air raid tunnels; experts investigate and uncover an extensive WWII bomb shelter that became a permanent refuge for many civilians after a devastating attack.
Underground Marvels Grand Canyon's Lost Treasure
Descending more than 200 feet beneath the Arizona bedrock lies the largest dry cave system in North America; experts explore this vast subterranean network to reveal the mysteries and undiscovered treasure that remain hidden within its walls.
Underground Marvels World's Biggest Labyrinth
The world's biggest labyrinth is a 1,553-mile cave system that's home to some of history's darkest mysteries, and new discoveries at this strange place reveal the long-lost secrets of Nazi occupation, Soviet revolution, and Cold War subterfuge.
Underground Marvels Cave of the Body Snatchers
Eerie system of underground vaults in Scotland was once hideout for thieves who stole newly-buried bodies and sold them; experts excavate these rubble-filled caves to reveal the secrets of what these bandits left behind.
Underground Marvels Secrets of the Terror Tunnels
A vast system of tunnels built almost 3,000 years ago was the site of the greatest battles of antiquity, and these disorienting passages could be the deadliest weapon in war; experts reveal what made this underground world so terrifying.
What on Earth? Australia's Nuclear Desert
Satellite images capture a giant symbol mysteriously carved into the expanse of Australia's Great Victoria Desert; an investigation reveals a secret nuclear weapons testing cover-up by the British government with numerous aboriginal casualties.
What on Earth? Stalin's Secret Atlantis
When experts spot what appears to be an abandoned city in the Caspian Sea, they investigate declassified Cold War evidence to reveal an Atlantis-like city built by the Soviets; what they find exposes its long-lost secrets.
What on Earth? Horror of Dead Man's Island
Experts investigate a gigantic ship that emerges from the sands of a strange island; what they find reveals evidence of a horrific Viking massacre.
What on Earth? Viking Warrior Invasion
Satellite images capture bizarre groups of circular structures in the remote forests of Derbyshire, England; experts investigate and uncover ancient burial mounds linked to a Viking invasion that changed the course of English history.
What on Earth? America's Secret Apocalypse
Satellite images reveal a mysterious pattern of six perfect circles hidden in the desert landscape of New Mexico; experts investigate and uncover evidence of catastrophic military testing deliberately erased from history.
What on Earth? Mystery of Apache Mountain
Satellite images capture mysterious stone structures spread across high elevations of the Arizona mountains; experts investigate and uncover ruins of a 19th century Apache fortification linked to the most treacherous migrant route in U.S. history.
What on Earth? Viking Warrior Invasion
Satellite images capture bizarre groups of circular structures in the remote forests of Derbyshire, England; experts investigate and uncover ancient burial mounds linked to a Viking invasion that changed the course of English history.
What on Earth? America's Secret Apocalypse
Satellite images reveal a mysterious pattern of six perfect circles hidden in the desert landscape of New Mexico; experts investigate and uncover evidence of catastrophic military testing deliberately erased from history.
What on Earth? Mystery of Apache Mountain
Satellite images capture mysterious stone structures spread across high elevations of the Arizona mountains; experts investigate and uncover ruins of a 19th century Apache fortification linked to the most treacherous migrant route in U.S. history.
What on Earth? Horror of Dead Man's Island
Experts investigate a gigantic ship that emerges from the sands of a strange island; what they find reveals evidence of a horrific Viking massacre.
Underground Marvels Cave of the Body Snatchers
Eerie system of underground vaults in Scotland was once hideout for thieves who stole newly-buried bodies and sold them; experts excavate these rubble-filled caves to reveal the secrets of what these bandits left behind.
Underground Marvels Secrets of the Terror Tunnels
A vast system of tunnels built almost 3,000 years ago was the site of the greatest battles of antiquity, and these disorienting passages could be the deadliest weapon in war; experts reveal what made this underground world so terrifying.
MythBusters Paper Crossbow
Adam and Jamie try to make a deadly weapon out of newspaper and underwear. Hosts: Jamie Hyneman and Adam Savage.
MythBusters Shredded Plane
Adam and Jamie receive an email with a photo of a shredded plane and must decide if it is genuine; they investigate if it was the propeller or another aircraft that was the cause.
MythBusters Archimedes Death Ray
Testing the fabled Archimedes death ray. Hosts: Jamie Hyneman and Adam Savage.