Cutting-edge computer graphics bring alien worlds, distant galaxies and our own solar system alive, as the universe's mysteries are explored.

Alien Planets 44m Astronomers have discovered more than 200 alien worlds in a decade's time -- have these planet hunters found proof of other earthlike worlds?

Cosmic Holes 44m We know that black holes exist, but our infinite cosmos could contain a variety of "holes," including mini-black holes, white holes and wormholes.

Mysteries of the Moon 44m This episode explores the theories behind lunar transient phenomena that have left scientists stumped for centuries.

The Milky Way 44m Countless celestial wonders exist between where Earth is situated in space and the massive black hole at the center of our solar system.

Alien Moons 44m Travel from the Earth to the Kuiper Belt and explore the once-unknown moons surrounding the planets of the solar system.

Dark Matter 45m Discovered by scientists only 10 years ago, a mysterious force known as dark energy is rapidly pushing apart our universe.

Astrobiology 44m Astrobiology is a visionary new science that searches for life in space by combining the disciplines of astronomy, biology and geology.

Space Travel 44m Modern day scientists propose a bizarre array of technologies in the hopes of one day traveling faster through space.

Supernovas 44m Meet the world's leading supernova hunters, and take a look at some of the most sensational recorded supernovas.

Constellations 44m Explore some of the 88 official constellations, star pictures that help organize the night sky and provide a useful tool for astronomers.

Unexplained Mysteries 44m Delve into the amazing mysteries of our unique universe, including the theory of life on Mars and the possibility of time travel.

Cosmic Collisions 44m Astronomers attempt to understand how cosmic collisions occur in the dark recesses of space.

Colonizing Space 44m Examine the efforts underway to establish a human colony on Mars, including plans to grow food, recycle wastewater and introduce greenhouse gases.

Nebulas 44m Scientists use the most sophisticated techniques to capture images of the mysterious clouds of gas known as nebulas.

Wildest Weather in the Cosmos 44m Wild weather -- from powerful tornadoes to 6,000 mile-per-hour winds to rain made of iron -- occurs daily in our solar system.

Biggest Things in Space 44m The Earth's tiny celestial footprint is compared to some of the biggest objects in the known universe.

Gravity 44m Gravity, the most powerful and exacting force in the universe, binds us together, hangs stars in the sky and crushes light.