Science Channel HD

On a snowy morning in Pittsburgh, a messy commute becomes dangerous after a bridge collapses; an investigation reveals how corrosion and other environmental factors helped bring down this decades-old structure.

An aging dam in Nebraska is overcome by flooding after the area is hit with a devastating bomb cyclone; an investigation reveals that massive chunks of ice unleashed by the superstorm played a critical role in the failure of the old structure.

Trask and his team take on the iconic Space Needle in Seattle to fix an aging window-washing basket; in San Antonio, they look to get a stadium ready for game day.

A deadly explosion strikes at the heart of a small Texas town and leaves a community in ruins; experts use the latest science to investigate and uncover a nearby fertilizer plant containing volatile chemicals poised for disaster.

A piece of the sun seems to have vanished; the Hubble spots an unidentified object traveling faster than light.

Soviet photos of the moon are intercepted by the CIA; a malfunction aboard the ISS, which imperils the whole crew; NASA probe finds evidence of the possibility of life on Mars.

A photograph depicts two suns in the sky over Indonesia; ghostly white swirls on the moon's surface baffle NASA scientists; an astronaut disappears during his return to Earth.

Cosmologists say there are black holes throughout the Universe, but they've never seen one and it's almost impossible to study them directly.

Mercury is a deadly world, facing attacks from the Sun, comets, and other planets; even though it's the smallest planet in the solar system, Mercury has a dangerous secret that may one day threaten life on Earth.

The Roanoke colony vanishes without a trace, and centuries later, it remains one of history's greatest unsolved mysteries; but new evidence might at last reveal its fate; after a man is swallowed by earth, experts wonder if a sinkhole is to blame.

New technology reveals lost cities in inhospitable jungle; researchers wonder if the mythical city of El Dorado could be the next discovery; after a crystal is found on a shipwreck, experts believe it could prove how the Vikings discovered America.

After five planes vanish in the Bermuda Triangle, new science suggests a strange geological force is responsible; satellites reveal lost tribes living in the Amazon jungle, but some civilizations remain missing, stumping experts.

A huge cargo ship suddenly vanishes with 27 crew members on board; new evidence suggests the culprit may be a mythical rogue wave; recently discovered evidence could prove the existence of a ghost ship in the Californian desert.

In 2009, an Air France flight goes missing, and investigators discover this tragedy could happen again; after a huge area of Siberian forest is destroyed, investigators race to find the culprit; new evidence might solve this century-old mystery.

Atlantis is one of the most famous disappearances of all time; after thousands of years, state-of-the-art technology might finally be able to crack this ancient mystery; after nine hikers die in a gruesome cold case, new science provides a hot lead.

In 1962, three convicts attempt the impossible and escape from Alcatraz prison; officials believe the men drowned, but a new scientific experiment suggests they made it to shore.

A derelict beachside resort along the Black Sea is constructed upon deception and deep connections to the criminal underworld; experts investigate and uncover dark secrets behind a sprawling holiday complex constructed by the Russian mafia.

A desert island adrift in the Gulf of Mexico contains a massive and marooned structure with a contagious past; experts investigate and uncover a desolate military fortress turned prison and plagued by a deadly disease.

The haunting remains of an isolated ghost town high in the Colorado mountains suggests a once booming mining community left in devastation; experts uncover an inhospitable land of shattered dreams where fortune seekers chased the American dream.

A collection of ramshackle structures with a mystical facade lie mysteriously deserted on the tropical island of Bali; experts investigate and uncover the ruins of a bizarre amusement park complex with a disastrous past.

A breathtaking stainless steel tower seems otherworldly and out of place in the remote mountain forests of Croatia; experts investigate and uncover a dark past of Nazi-led conflict and a monument to a desperate fight for survival.

Long, dome-like structures camouflaged by a rural landscape conceal the remains of concrete vaults with a hidden history; experts investigate and uncover state-of-the-art bunkers built to conceal and protect a deadly nuclear secret.

A collection of ramshackle structures with a mystical facade lie mysteriously deserted on the tropical island of Bali; experts investigate and uncover the ruins of a bizarre amusement park complex with a disastrous past.