Science Channel HD

Satellite images capture a bizarre industrial complex in the remote desert expanse of Kazakhstan; experts investigate and uncover a massive hangar containing the most expensive spacecraft in the history of Soviet-era space exploration.

The CIA's MK-Ultra program sought to create mind control methods through unethical human experimentation, and now, experts investigate classified documents that reveal the horrific atrocities that were carried out in the pursuit of national security.

A subterranean Neolithic temple discovered on the island of Malta contains the skeletal remains of thousands of humans; experts use forensic archaeology to investigate elongated skulls that may unlock the secrets of an advanced, lost civilization.

Adam and Jamie try to solve one of aeronautics' biggest puzzles; Kari, Tory and Grant face some of nature's natural-born killers.

Adam and Jamie try to escape a car submerged in water.

Adam and Jamie push the limits when it comes to speed; they take on speed cameras in an action-packed adventure.

Swinging Luke and Leia across a chasm with a grappling hook; an Ewok log crushing an Imperial "Chicken Walker"; surviving in a tauntaun's belly.

A barge carries an entire train along Alaska's high seas; a flying ambulance saves lives at 14,000 feet; 16 missiles stand by to prevent a nuclear disaster.

Alaska's Coast Guard fights dangerous waters to maintain buoys; machinery finds big rewards 800 feet below Alaska's surface; Alaskans build a steel ferry.

An airport made from nothing but water and ice; an Alaskan fish factory churns out millions of pounds of seafood a day; hardy vehicles brave the arctic to travel across the tundra.

Alaskan engineers build a massive dam to power an entire town; the world's largest helicopters; Alaska's largest boat lift hauls a 400-ton fishing ship in high winds.

The Yeti, a machine with 588 sharp teeth, helps keep an airport running; tugboats break the ice in an Alaskan port; soldiers stationed at the coldest army post in the US.

A ship built to endure tsunami size waves travels on a highway unlike any other in North America; a fleet of machines combats a huge flood in the Arctic Circle; the biggest, most powerful wind turbines in Alaska.

Examine a tiny skeleton in Chile that set off a firestorm of alien speculation, then explore a forgotten Silk Road settlement. Uncover evidence of a mass sacrifice in northern Peru and visit a multi-faceted military site from the age of the pharaohs.

Experts uncover four global stories of extraordinary curiosities that were once concealed in the deserts of the planet.

Experts uncover four global stories of extraordinary curiosities that were once concealed in the deserts of the planet.

Look inside the lost tomb of King Thutmose II and get new clues about Egypt's pharaohs, then dust off stone hunting structures in Saudi Arabia. Visit a 1,200-year-old mosque buried in the Negev Desert and inspect a 30-million-year-old predator skull.

Scan the skeleton of a drowned Stone Age fisherman in Chile and rediscover a vanished golden age in Egypt's lost city of Aten. Watch ancient Chinese mummies reignite a cultural debate, then discover a massive biblical-era moat in Jerusalem.

Inspect a Mongolian mass grave and learn the fate of a platoon of soldiers, then investigate a 5,000-year-old tavern in Iraq; examine an Egyptian scarab that's far from home and ancient tools that show where desert migration routes once lay.

The latest archaeological research unravels the mystery behind this elusive Egyptian queen, whose name is synonymous with seduction, beauty and scandal.

Inspect a Mongolian mass grave and learn the fate of a platoon of soldiers, then investigate a 5,000-year-old tavern in Iraq; examine an Egyptian scarab that's far from home and ancient tools that show where desert migration routes once lay.