Through the Wormhole - Season 5 (2014)

The stability of the US, Europe, China, or any global power depends on high-speed digital communication. With a little imagination, could a few terrorists sabotage this massive network? Cripple a mighty nation? Perhaps even tear down modern civilization? Our increasing dependence on digital devices and global interactivity may be placing us in grave danger. Scientists around the world are dealing with new threats such as body hacking, Trojan Horse viruses, and brain-damaging Internet addiction. But what if the ultimate threat isn't an attack on technology, but the ...

There could be an undiscovered species on Earth unlike anything we've ever known. Not in the ocean, but the ocean itself.

It is a nightmare that has stalked us for centuries: hordes of human beings transformed into mindless, bloodthirsty monsters that usher in the downfall of civilization. Could this nightmare ever become reality? Scientists have discovered pathogens that turn insects into the walking dead. New deadly strains of viruses are attacking humans every day. Mathematicians are calculating the likelihood of surviving a zombie virus outbreak. Neuroscientists are even discovering that we can easily lose conscious control of our bodies. If we were in the middle of a zombie ...

Gravity is an unsolved mystery of the universe. Why do all objects that have mass pull on one another? New theories propose unexpected answers.

Humanity's potential seems limitless. But could we become as powerful as God? Scientific breakthroughs grant our species seemingly divine abilities.

Cosmologists agree that "dark matter" has helped shape our Universe, but now they need to figure out what dark matter is. What's going on in this hidden world? Could it have formed its own dark stars, planets, and even life forms?

We float along the river of time. But does that river have a source? Where did time come from?