Science Channel HD

When satellite images reveal spot a strange white substance in the land of the Aztecs, experts investigate the site for extraterrestrial connections; what they find could explain the rise of one of the world's greatest civilizations.

The lost city of Olous: A great metropolis submerged in the Mediterranean; archaeologists uncover its secrets using pioneering technology and CGI reconstruction.

The Dendera Temple is one of the best-preserved temples in all of Egypt; experts decipher its mystifying zodiac images and uncover the ceremonial events that took place at this sacred site, and stunning CGI rebuilds this grand complex in its prime.

Tourists explore the far reaches of northern Canada and gain exclusive access to polar bears on custom-built rovers; the Twin Otter aircraft drops much-needed supplies to isolated villages.

Experts use a cutting-edge, all-terrain engineering marvel to access a perilous job site covered in snow.

A special drone uses cutting-edge technology to fly deep into treacherous, hard-to-reach mountains on dangerous search and rescue missions, and a hi-tech ice machine works tirelessly at a Toronto airport to keep flights running in brutal conditions.

Adam and Jamie investigate the ability of hit men to take down a target.

Adam and Jamie, along with Al Jean, the executive producer of "The Simpsons," test occurrences from the show.

Stow your tray tables because in this aviation extravaganza Adam and Jamie tackle two flights of fantasy.

Adam and Jamie test whether or not hands-free driving is a safe way to make a call while behind the wheel.

Adam and Jamie blow up a boat with 1,000 lbs. of high explosive; homemade machine gun from the "Breaking Bad" finale.

Adam and Jamie put the pedal to the metal and set out to test two tall tales from the street racing world; they investigate whether oversteering increases agility and if reverse parking is still possible using the drifting technique.

Adam and Jamie challenge the science of virtual worlds from video games.

When dams break, devastation follows; Derna, Malpasset, Brumadinho, three disasters that turned engineering failures into mass tragedies.

Bridge collapses have etched hard lessons into the history of engineering; Tacoma, Minneapolis, Genoa, symbols of innovation that have become stark reminders of what happens when flaws go unchecked.

Look back at the Tenerife, Kegworth, and Paris Concorde air disasters; investigate the design defects that made these aircraft vulnerable; look at the role air traffic miscommunications played; relive the terrible moments before disaster struck.

Pinpoint the mistakes that cause major structural failures; explore the preventable explosion inside London's Ronan Point; the code violations that collapsed Lalita Park; the short circuit that set off a deadly fire in Tehran's Plasco Building.

Drill down on maintenance and safety lapses that derailed amusement park rides.

Hunt for the root cause of atomic accidents; examine the Windscale fire, which led to safer reactor designs; learn why swift crisis management helped in the Three Mile Island incident; see why improper waste disposal fuelled the Kyshtym disaster.

Experts examine declassified documents to uncover the true story behind the worst nuclear disaster in history.

Hunt for the root cause of atomic accidents; examine the Windscale fire, which led to safer reactor designs; learn why swift crisis management helped in the Three Mile Island incident; see why improper waste disposal fuelled the Kyshtym disaster.