“If the world is taken over by unconscious robots, that would be about as disastrous and bleak a scenario as one could imagine.” Chalmers isn’t alone. Two of the heaviest hitters of the ...

A 250,000-year-old footprint preserved in ash, and the effect of a polluted atmosphere on health and the economy, in our weekly dip into Nature’s archive.

The following answers to this artful question each win a random book. Art is something we do, a verb. Art is an expression of our thoughts, emotions, intuitions, and desires, but it is even more ...