The History Channel

To know our place in the universe take a look far, far away to the realm of Alien Galaxies. Our galaxy is one of hundreds of billions in the universe. The Milky Way consists of more than a billion stars, our sun being only one of them. Take a view of the universe through the Hubble Space telescope and go back almost all the way to the Big Bang. Cutting-edge computer graphics are used to bring the universe down to earth to show what life would be like on other planets, and to imagine what life forms might evolve in alien atmospheres.

Director and host James Fox assembles the most credible UFO witnesses from around the world to testify on the subject and share their experiences and observations. Air Force generals, astronauts, military and commercial pilots, government and FAA officials from seven countries gather at the National Press Club in Washington D.C. to tell stories that, as former Arizona governor Fife Symington states, "will challenge your reality." These accounts reveal a behind-the-scenes U.S. operation whose policy, in the eyes of some observers, seems to involve confiscation of substantiating evidence from close encounters--to the extent that even Presidents have failed to get straight answers.

There really are ice worlds like Hoth from Star Wars. In this episode, we explore icy planets and moons, discover the role of cold in the Universe, and learn about the importance of ice to the development of habitable worlds.

It bursts from the sun with the power of ten thousand nuclear weapons... and when it hits our planet, it could create the largest disaster in recorded history. A magnetic storm from the sun could wipe out electrical power, television, radio, military communication, and nearly every piece of electronics in the Northern Hemisphere. It's a "Solar Katrina" -- a planet-wide "hurricane" of magnetic forces that scramble all 21st Century technology, possibly for good. What causes this magnetic superstorm? Why is magnetism so powerful -- and yet so poorly understood? And is there anything we can do to prevent the Magnetic Storm?

They've discovered water on other planets, and snatched the actual building blocks of life from a comet's tail. But can space probes find a new Earth...and even make contact with alien life? In the 21st century, space probes are photographing, drilling and even sniffing new worlds in the quest for life, and scanning thousands of distant suns trying to detect Earth-like planets. It's only a matter of time before space probes unlock the secrets to extra-terrestrial life and the universe itself.

Today, we know black holes exist, and now scientists are trying to confirm that other holes lurk in hyperspace. Our infinite cosmos could contain a variety of "holes" such as black, white, "mini" and wormholes. White holes are the reverse of black holes; instead of matter being sucked into it, matter is ejected out. Wormholes are gateways in the fabric of space and time. They are included in Einstein's field equations as possibilities for their existence. Neither white holes nor wormholes have ever been found. Learn about new discoveries including, colliding binary black holes, intermediate black holes and manufacturing mini black holes.

Earth may seem like the most hospitable planet in the solar system. But look again. Startling new discoveries reveal the blue planet has been plagued by more chaos and destruction than scientists once imagined. Stand on the Earth billions of years ago as a primitive planet slams into it. Shiver as our entire globe is frozen over like a gigantic snowball. Feel the heat as mammoth volcanoes scorch the landscape and darken the sky. From a cosmic gamma ray burst frying away the ozone layer to an Everest-size asteroid slamming into the ocean, we'll reveal new information about how these unparalleled events drove life to the brink of total extinction. Out of this continuous devastation, how has our planet--and life--got to where it is today? Are the worst days behind us--or lurking in the distant future?

Easter Island, the Mayan ruins, and the abandoned pueblos of Chaco Canyon all stand as haunting monuments to extinct civilizations. Each of these societies collapsed because of man-made ecological disasters. Each confronted choices chillingly similar to the ones we face today. Are we living in the last century of our civilization? Many of the world's top scientists say yes, unless we quickly learn the lessons of the past. This two-hour special examines the current path of our modern world. Top U.S. Army, intelligence, and policymakers who have modeled a scenario of the next century say that if we continue on this trajectory, over the next hundred years the "perfect storm" of population growth, resource depletion, climate change, terrorism and disease will converge in an unstable world with catastrophic results. What lessons of the past must we heed to survive?

Geologist Scott Wolter has reason to believe America has its very own Stonehenge in New Hampshire. With the help of a young man who discovered an amazing connection between America's Stonehenge and Stonehenge in England, Wolter explores the possibility that the ancient Phoenicians are connected to both of these megalithic sites. At America's Stonehenge, he uncovers many clues, including a sacrificial table and a mysterious message carved on a stone in ancient script that helps advance this provocative theory. He also discovers both sites are accurate astronomical calendars and that alignments with the heavens are incorporated into their design.

A man shows up at Scott Wolter's lab with a 500-pound discovery. In the flatbed of his truck is a large boulder he pulled from the Arkansas River, inscribed with a mysterious bull symbol. Wolter's investigation into who carved the stone and for what ritualistic purpose ultimately reveals a connection between the ancient Egyptian cult of the Apis bull, the mysterious religion known as Mithraism and a party of pre-Columbian explorers to Oklahoma's panhandle. In the end, carvings in a cave in America's Heartland shed light on an ancient connection that could prove a group of religious outcasts made it to America in pre-Columbian times.

Pigs break loose, rabies spreads, and the Chicago river reverses. Also, the fate of Big Ben, the Queen's pet corgis, and Chicago's tallest buildings. This episode is a journey that will take us to the future of Chicago, Atlanta and London--as well as haunting locations already devoid of man. This isn't the story of how we might vanish--it's the story of what happens to the world we leave behind.

Informational programming.

Informational programming.

Informational programming.

Informational programming.

The apocalyptic future of our gambling meccas. In Las Vegas, a new rat pack takes over, wax figures of celebrities melt, and iconic hotels crumble. In Atlantic City, the ocean tears apart casinos, but the boardwalk refuses to be destroyed.

It bursts from the sun with the power of ten thousand nuclear weapons... and when it hits our planet, it could create the largest disaster in recorded history. A magnetic storm from the sun could wipe out electrical power, television, radio, military communication, and nearly every piece of electronics in the Northern Hemisphere. It's a "Solar Katrina" -- a planet-wide "hurricane" of magnetic forces that scramble all 21st Century technology, possibly for good. What causes this magnetic superstorm? Why is magnetism so powerful -- and yet so poorly understood? And is there anything we can do to prevent the Magnetic Storm?

They've discovered water on other planets, and snatched the actual building blocks of life from a comet's tail. But can space probes find a new Earth...and even make contact with alien life? In the 21st century, space probes are photographing, drilling and even sniffing new worlds in the quest for life, and scanning thousands of distant suns trying to detect Earth-like planets. It's only a matter of time before space probes unlock the secrets to extra-terrestrial life and the universe itself.

Today, we know black holes exist, and now scientists are trying to confirm that other holes lurk in hyperspace. Our infinite cosmos could contain a variety of "holes" such as black, white, "mini" and wormholes. White holes are the reverse of black holes; instead of matter being sucked into it, matter is ejected out. Wormholes are gateways in the fabric of space and time. They are included in Einstein's field equations as possibilities for their existence. Neither white holes nor wormholes have ever been found. Learn about new discoveries including, colliding binary black holes, intermediate black holes and manufacturing mini black holes.

Earth may seem like the most hospitable planet in the solar system. But look again. Startling new discoveries reveal the blue planet has been plagued by more chaos and destruction than scientists once imagined. Stand on the Earth billions of years ago as a primitive planet slams into it. Shiver as our entire globe is frozen over like a gigantic snowball. Feel the heat as mammoth volcanoes scorch the landscape and darken the sky. From a cosmic gamma ray burst frying away the ozone layer to an Everest-size asteroid slamming into the ocean, we'll reveal new information about how these unparalleled events drove life to the brink of total extinction. Out of this continuous devastation, how has our planet--and life--got to where it is today? Are the worst days behind us--or lurking in the distant future?