Neil deGrasse Tyson explains the probability of time-traveling killer robots to a child.

Google has been on a major robot buying spree, and it might be for reasons other than you might think.

Not that we resent science for simply trying to advance robotics, but when you build something, look at it, and realize you've built a Terminator hand, you really have to ask yourself what, precisely, you're trying to achieve as a scientist and whether it happens to be a good thing.