If you had less than one second to make a life-or-passing decision to shoot a man who might be armed with a lethal weapon, what would you do? Would the ethnicity of the man affect your decision? Are you sure? The outcome - whatever your race - will surprise you. Brain imaging studies are showing that negative cultural stereotypes hijack everyone's subconscious decision-making. But some science says we can overcome bigotry through exposure, self-awareness and flexible social networks... and, most controversially of all, ultra-unhappy video games!.

We move around in space, but we are stuck in a prison of time moving ever forwards. Is our experience of the ticking clock merely a trick of the mind? Could science ever make the clock move backwards?.

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

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

Odds are excellent that extraterrestrial life exists. So why haven't we found aliens out in the galaxy? Are we looking in the wrong places? New research shows we should look closer to home, even inside our bodies.

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.