TV Schedule for Science

How the Universe Works Voyager's Ultimate Mission

As the two Voyager spacecraft reach interstellar space, experts explore their astonishing discoveries and how their extended operation has transformed into the ultimate mission.

How the Universe Works The Moons of Saturn

With more than 80 moons, Saturn could rank among the most dynamic planetary system in Sol's neighborhood; with its giant underground oceans and protective magnetic fields, experts explore how Saturn's moons offer new insight into the Solar System.

How the Universe Works A Robot's Guide to Mars

Mars is infested with robots, orbiting the planet and roaming the Martian surface on a mission to uncover its secrets; now, Perseverance joins this dedicated group of machines to uncover if there is, or was ever, life on the Red Planet.

Alaska Mega Machines Warriors in the Last Frontier

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 Mega Machines Gargantuan off the Grid

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.

Alaska Mega Machines Bering Sea Giants

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.

Alaska Mega Machines Behemoths of the Bush

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.

Alaska Mega Machines Beasts of the Arctic

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.

Alaska Mega Machines The Yeti Strikes Back

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.

Engineering Catastrophes Quake of Christchurch

Tragedy strikes the heart of a city as an earthquake wipes out a building full of people in Christchurch, New Zealand; experts investigate an inadequate structural design and weakness in critical supporting columns.

Engineering Catastrophes Blaze of Winston-Salem

A catastrophic fire at a fertilizer plant threatens city-wide devastation in Winston-Salem, N.C.; experts use the latest science to investigate an outdated, wooden storage facility heavily stocked with volatile, explosive chemicals.

Engineering Catastrophes Tower Crane Calamity

A crane collapse leaves seven dead on a holiday weekend in Manhattan; an investigation reveals how a shortcut taken while raising the crane left the machine swaying in the wind without proper lateral support.

Engineering Catastrophes Pacific Coast Bridge Collapse

Residents along the Pacific Coast Highway are cut off from the outside world after a storm causes a bridge to buckle; experts reveal how the construction method of the old concrete bridge left it vulnerable to erosion on the steep coastline.

Engineering Catastrophes California Flood Fiasco

A perfect storm with tragic consequences strikes as flood waters rip away a major highway crossing in Huron, Calif.; experts use the latest tech to investigate and reveal bridge scouring with unsupported concrete columns exposed for failure.

Engineering Catastrophes Island Observatory Failure

In Puerto Rico, an iconic observatory nestled into a giant crater has to close after cables holding up a critical platform come crashing down; experts analyze the cumulative effects that led to the collapse of this awe-inspiring structure.

Engineering Catastrophes Pacific Coast Bridge Collapse

Residents along the Pacific Coast Highway are cut off from the outside world after a storm causes a bridge to buckle; experts reveal how the construction method of the old concrete bridge left it vulnerable to erosion on the steep coastline.

Engineering Catastrophes California Flood Fiasco

A perfect storm with tragic consequences strikes as flood waters rip away a major highway crossing in Huron, Calif.; experts use the latest tech to investigate and reveal bridge scouring with unsupported concrete columns exposed for failure.

Engineering Catastrophes Island Observatory Failure

In Puerto Rico, an iconic observatory nestled into a giant crater has to close after cables holding up a critical platform come crashing down; experts analyze the cumulative effects that led to the collapse of this awe-inspiring structure.

Engineering Catastrophes Tower Crane Calamity

A crane collapse leaves seven dead on a holiday weekend in Manhattan; an investigation reveals how a shortcut taken while raising the crane left the machine swaying in the wind without proper lateral support.

Alaska Mega Machines Beasts of the Arctic

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.

Alaska Mega Machines The Yeti Strikes Back

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.

NASA's Unexplained Files Attack of the Thunderballs

Astronauts evacuate when a mystery object hurtles toward the ISS; a NASA secret agent goes undercover to retrieve missing moon rocks; scientists struggle to find answers when they discover a huge void at the edge of the solar system.

NASA's Unexplained Files Ghosts on a Comet

When a Chinese moon rover breaks down, a scientist at NASA points to a mysterious material that seemed to sabotage the Apollo missions decades earlier; the Rosetta spacecraft discovers a comet that appears to be singing.

NASA's Unexplained Files Rise of the Ice Creatures

Neil Armstrong enters an unexplained spin; an Apollo 17 photo seems to show a US military outpost on the Moon; possible alien life swimming in the oceans of Jupiter's moons.