Some of the world's leading physicists believe they have found startling new evidence showing the existence of universes other than our own. One possibility is that the universe is so vast that an exact replica of our Solar System, our planet and ourselves exists many times over. These Doppelganger Universes exist within our own Universe; in what scientist now call "The Multiverse."

An exploration of Earth's cosmic neighborhood. Looking beyond the borders of our solar system, what's nearby in our galaxy? How do the other objects in our local area influence life on Earth? And, how did Earth's place in the galaxy make it the perfect place for the development of advanced life?

This episode discusses the coldest places in the universe from labs on earth to super cold places in our solar system, galaxy and beyond.

A comet travels to the sun from the outer reaches of the solar system.

Ignited by the power of the atom, burning with light, heat and wrath, stars are anything but peaceful. They collide, devour each other, and explode in enormous supernovas--the biggest explosions in the Universe.

Are we alone? SETI--the Search for Extraterrestrial Intelligence--is a privately funded project using radio telescopes and optical telescopes to scan the stars for signals.

The moon has comforted man for thousands of years. It's been everything from a god to a compass, and the only cosmic body human beings have ever visited. NASA is planning to build a permanent outpost there. Discover how the moon came to be--if you don't already know, you will be astounded.

The universe began with a massive expansion, billions and billions of years ago, and it continues to expand with every passing second. The idea that the universe, and man's very existence, began with a "Big Bang" is no longer a topic of debate among most scientists--it is essentially taken as fact.

The biggest objects, farthest distances, and fastest speeds are made relatable through extreme physical analogies.

Behold the sun and all of it's glory. Learn all things about the sun ranging from its beginning to its death. Also learn about how stars work in general and MUCH MUCH more.

Visit the planet most like Earth. There is a discussion of what life on Mars would be like and about the life forms that could've evolved there.

Are the rings of Saturn a real celestial phenomenon or merely a cosmic Illusion? Technology allows the experts to get closer to the furthest planet visible to the naked eye. Old questions are answered and new ones arise. Does Saturn hold the key to Earth's weather and will one of its moons supply us with all the oil we'll ever need?

This episode details outer lying planets and their moons. Included will be Uranus, Neptune, and Pluto. Using CGI, we will also see what alien life might look like on other worlds.

Have planet hunters finally found proof of other Earthlike worlds? Astronomers have now discovered over two hundred alien worlds, beyond our solar system, that were unknown just a decade ago

We used to think that Earth was at the center of the universe, but now we know we're not even at the center of our own galaxy. Countless wonders exist between where earth is situated and the massive black hole at the galactic center of our solar system. Within the Milky Way can be found the debris of old, dying stars fueling the birth of new stars and at the galactic center hypervelocity stars get catapulted clear beyond the Milky Way's outer rim at unimaginable speeds. Come along for a guided tour of 100,000 light-year-wide family of stars and stellar phenomena we call The Milky Way.

Imagine a tornado so powerful, it can form a planet or how about rain made of iron.

Asteroids, comets, gamma ray bursts and the sun all combine to make the Earth a dangerous place to live. NASA's top brass and other scientists are arming themselves with the latest technology to pre-empt an apocalyptic attack. Watch and investigate bizarre, and terrifying apocalyptic scenarios and the ways that scientists are racing against the clock to develop technology to defend our planet.

Take a high performance ride through the formation of the third planet from the Sun, Earth... A survivor of one of the most violent "neighborhoods" in the Universe, learn how Earth was created and discover what creatures hold clues to how life began. What evil forces threaten the demise of Earth? Complex and controversial, this is the scientific detective story of all time.

A look at the grim future of our home star, the sun, and what might happen to it five billion years in the future. Also the results of the growing sun as it kills life, including humans, if they were still around.

A look for evidence of life on Mars which provides many clues that it now, or once had supported it; from the remains of lakes and rivers that once flowed on the surface; to the water ice frozen at the poles; to the seasonal changes in methane gases that may prove bacterial life still thrives underground.

A look at space probes, what they have done and found for us in space, and what they might do in the future, such as searching for Earth-like planets and for extraterrestrial life.

At 4.6 billion years old, the Solar System is our solid, secure home in the Universe. But how did it come to be? In this episode we trace the system's birth from a thin cloud of dust and gas. Shocked by a nearby supernova, the pull of gravity and natural rotation spun it into a flat disc from which the Sun and planets coalesced. It all happened in the space of 700 million years, during which the planets jockeyed for position, dodging the brutal bombardment of deadly asteroids and setting into the neat, stable system that we now realize might be a rarity in the universe.

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?

A close up look at some of the most astonishing wonders of our solar system, such as the geysers of Enceladus; Saturn's amazing rings; Jupiter's Great Red Spot; and the heights of Olympus Mons on Mars.

A look at time travel; how it could one day become reality; how Einstein's theory of relativity claims it is possible, and the probable results of traveling to the future and the mind-boggling consequences of traveling to the past.