If you had less than one second to make a life-or-death 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?

Could science ever make the clock move backwards? Experiments in quantum physics are showing that the future influences the present: what happens later limits the choices we think we have now

Evolution say that all life exists only to reproduce; a new theory proposes that instead of passing on genes, humans have another purpose

Our universe seems real. But what if it's a video game? Scientists in a variety of fields are taking seriously the possibility that we live in a virtual reality

Odds are excellent that extra-terrestrial life exists. So why haven't we found aliens out in the galaxy? Are we looking in the wrong places?

We all agree lying is shameful. Yet we still deliberately deceive each other constantly. Are our brains wired for lying from a young age? The brains of pathological liars may provide insights