In the premiere episode of the second season, Morgan Freeman dives deep into this provocative question that has mystified humans since the beginning of time. Modern physics and neuroscience are venturing into this once hallowed ground, and radically changing our ideas of life after death. Freeman serves as host to this polarized debate, where scientists and spiritualist attempt to define 'what is consciousness,' while cutting edge quantum mechanics could provide the answer to what happens when we die.

The episode was rated 7.66 from 219 votes.

Every 17 minutes, someone is killed with a gun. It's a wave of violence that political debate can't seem to stop. Is this an epidemic that scientists can help cure? Could gun crime be a virus?

The episode was rated 7.64 from 89 votes.

With a little imagination, could a few terrorists sabotage a mighty nation? Perhaps even tear down modern civilization? The stability of the US, Europe, China, or any global power depends on high-speed digital communication. 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 technology? Could the final superpower be the disembodied mind of the Internet itself?

The episode was rated 7.63 from 119 votes.

Scientists, in various of fields, are taking seriously the possibility that this world maybe a virtual reality.

The episode was rated 7.61 from 173 votes.

The brains of pathological liars may provide insights on whether the human brain is wired for lying; technology can either make it easier for us to be dishonest, or could it someday instantly reveal someone is lying.

The episode was rated 7.59 from 109 votes.

Every cosmologist and astronomer agrees: our Universe is 13.7 billion years old. Using cutting-edge technology, scientists are now able to take a snapshot of the Universe a mere heartbeat after its birth. Armed with hypersensitive satellites, astronomers look back in time to the very moment of creation, when all the matter in the Universe exploded into existence. It is here that we uncover an unsolved mystery as old as time itself — if the Universe was born, where did it come from? Meet the leading scientists who have now discovered what they believe to be the origin of our Universe, and a window into the time before time.

The episode was rated 7.57 from 231 votes.

A dissection of the causes of terrorism.

The episode was rated 7.57 from 145 votes.

The show takes a look at a new theory that says instead of passing on genes, humans have another purpose.

The episode was rated 7.56 from 140 votes.

It's perhaps the biggest, most controversial mystery in the cosmos. Did our Universe just come into being by random chance, or was it created by a God who nurtures and sustains all life? The latest science is showing that the four forces governing our universe are phenomenally finely tuned. So finely that it had led many to the conclusion that someone, or something, must have calibrated them; a belief further backed up by evidence that everything in our universe may emanate from one extraordinarily elegant and beautiful design known as the E8 Lie Group. While skeptics hold that these findings are neither conclusive nor evidence of a divine creator, some cutting edge physicists are already positing who this God is: an alien gamester who's created our world as the ultimate SIM game for his own amusement. It's an answer as compelling as it is disconcerting.

The episode was rated 7.53 from 399 votes.

There could be an undiscovered species on Earth unlike anything we’ve ever known. Not in the ocean, but the ocean itself! Its body spans thousands of miles; its heart beats with a one-thousand-year pulse. It could even have an immune system capable of annihilating all other life on earth. Just as our bodies function through the interaction of water with individual cells, including bacteria and other microorganisms, the ocean’s residents might collectively form a super-organism. A recent discovery suggests the ocean is a living being capable of thought. If so, what is the ocean thinking about us?

The episode was rated 7.43 from 122 votes.