90% of the rocks in space are big enough to destroy civilization. And it's not a question of if they'll hit - it's a question of when. Dr Michio Kaku is on a mission to save planet Earth.

Its Dr. Michio Kaku's most ambitious plan yet: the construction of a new solar system. A giant sphere encircling a star, with new stellar civilization living on the inside. Its not sci fi; it's Kaku's vision for humanity's future.

The aliens are coming! It's the cry at the heart of hundreds of sci fi movies - but what would we do if a hostile alien race really were intent on invading? Earth must be prepared and Dr. Michio Kaku has a plan.

Do aliens really exist? With as many planets in the universe as there are grains of sand on Earth, most experts agree - finding extra terrestrials is just a matter of time. Michio Kaku is on a mission to make first contact.

Dr. Michio Kaku brings physics to bear on the most iconic scene in sci fi and designs a star fighter that could blow up a moon-sized Death Star.

In sci fi, the most destructive force in the universe is also the key to traveling to a whole host of mind-blowing destinations. Dr. Michio Kaku sorts fact from fiction and work out how to travel through a black hole...and survive.

Science fiction is full of terrifying humanoid machines with power to crush any opponent. But could we one day build our own army of superhuman cyborgs? Dr. Michio Kaku thinks a cyborg army could assemble sooner than you think.

Imagine a world ruled by machines where humanity has been wiped out. This is no sci-fi fantasy; machines will be smarter than us. Dr. Michio Kaku is drawing up a plan to save the human race.

Dr. Michio Kaku believes we can build one of sci-fi's most imaginative creations: Star Trek's Holodeck. He's on a mission to create an imaginary world indistinguishable from the real thing.

According to Hollywood, evil robots are all around us, disguised as cars and trucks. But what mechanical power allows a Camaro to stand and move like a human? Michio Kaku is on a quest to build a real shapeshifting Transformer.

To send people to Mars, NASA must create the most powerful rocket ever built. Here's the story of the Orion Space Craft, an engineering feat designed to sustain astronauts for years in one of the universe’s harshest environments.

How did engineers build the tallest bridge on the planet? As tall as a skyscraper, the Millau Viaduct braves deadly wind speeds over an immense abyss, and we go inside the story behind this modern wonder.

The AT&T Stadium in Texas is home to the Dallas Cowboys and the world's largest retractable roof. This $1.2 billion stadium can house over 100,000 fans, and we'll go inside how this engineering feat was built.

China's Three Gorges Dam is the largest and heaviest concrete structure on Earth, producing more power than any hydroelectric dam ever built. Discover how engineers reshaped a river to accomplish this incredible engineering feat.

How did engineers move mountains to build the longest and deepest rail tunnel on the planet? Discover how 25 million tons of rock were moved to build this modern wonder.

Go inside the largest cruise ship on the planet: a massive ship that's 1,181 feet long and a staggering 227,000 tons.