Monday, December 15th TV listings for Science HD
How the Universe Works Birth of the Monster Black Holes
New discoveries reveal an astonishing supermassive black hole that was born during the earliest days of the cosmos, and finding out how this giant grew so large so quickly may help to explain the very formation of the universe itself.
How the Universe Works Curse of the White Dwarf
White dwarfs are small, dead stars with a dangerous side, and they are capable of exploding into supernovas and destroying planets; new research suggests these mysterious phenomena may be the key to understanding the universe itself.
Secret Nazi Ruins Secrets of the Owl Mountains
Experts uncover a mysteriously abandoned underground complex that may have hid something very dark.
Secret Nazi Ruins Secret Nazi City
As the Nazis embark on their dominate rise to power, a massive construction project secretly begins across Eastern Germany; using the latest tech, experts uncover an elaborate network of underground tunnels and bunkers with frightening ambitions.
Secret Nazi Ruins Mystery Beneath the Castle
When the Nazis took Ksiaz Castle in 1941, it wasn't for the view, and they got to work turning it into a fortress; secret staircases and elevators were built, while underneath, a vast network of tunnels was taking form.
Secret Nazi Ruins Secret Relics of Nazi Research
The skeletal remains of strange structures are clues to a mysterious research installation secretly built by the Nazis in Western Poland; experts investigate and uncover top-secret military fuel development with a catastrophic purpose.
Secret Nazi Ruins Secrets of Vogelsang Castle
A medieval castle-like complex in the remote mountains of Germany contains dark secrets to the Nazi's plan for world domination; experts investigate and uncover a nefarious training facility designed to groom elite Nazi personnel.
Secret Nazi Ruins Underground Superweapons
A labyrinth of tunnels carved deep in the Polish mountains leads to the largest underground Nazi weapons development complex ever discovered.
Underground Marvels The Renegade's Lair
A strange underground system known as the Black Cave is connected to a fairytale castle and was home to an infamous nobleman on the run from the law; experts investigate the secrets he left here to discover new parts of this mysterious network.
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.
Underground Marvels Curse of Cannibal Caves
A mysterious cave system is home to some of the oldest human remains ever discovered, and today, the explorers and researchers investigating this site are uncovering shocking evidence of cannibalism among its Ice Age denizens.
Underground Marvels Ghosts of the Hell Maze
A labyrinth of vast tunnels in the French countryside has served as a secret hideout during wartime for centuries, and on its walls, experts have discovered the final confessions of soldiers who fought during one of the deadliest days of World War I.
Underground Marvels Conspiracy in the Buried City
A buried ancient city hidden five-stories underground can house 3,000 people in secret; experts use the latest tech to reveal the truth behind this strange place.
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 Ghosts of the Hell Maze
A labyrinth of vast tunnels in the French countryside has served as a secret hideout during wartime for centuries, and on its walls, experts have discovered the final confessions of soldiers who fought during one of the deadliest days of World War I.
Underground Marvels Conspiracy in the Buried City
A buried ancient city hidden five-stories underground can house 3,000 people in secret; experts use the latest tech to reveal the truth behind this strange place.
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 Curse of Cannibal Caves
A mysterious cave system is home to some of the oldest human remains ever discovered, and today, the explorers and researchers investigating this site are uncovering shocking evidence of cannibalism among its Ice Age denizens.
Secret Nazi Ruins Underground Superweapons
A labyrinth of tunnels carved deep in the Polish mountains leads to the largest underground Nazi weapons development complex ever discovered.
Underground Marvels The Renegade's Lair
A strange underground system known as the Black Cave is connected to a fairytale castle and was home to an infamous nobleman on the run from the law; experts investigate the secrets he left here to discover new parts of this mysterious network.
NASA's Unexplained Files Pluto's Evil Twin
After NASA's New Horizons spacecraft flies by Pluto, it encounters a strange alien world that shuts down the probe's computers; experts investigate if the mysterious object is an alien spacecraft hiding at the edge of the solar system.
NASA's Unexplained Files Aliens vs. Stalin at Area 51
When a former Area 51 insider alleges that the Roswell UFO incident was a nefarious Soviet conspiracy masterminded by Stalin, experts investigate if it was indeed an enemy plot against America -- or if the confession is just another cover-up.
NASA's Unexplained Files Planet of the Metal Aliens
Experts investigate if a nearby exoplanet could be the home to an alien civilization of strange, metallic monsters, after a new discovery confirms that life can thrive on such a strange world.