Next year comet 2012 S1 might outshine the moon.

Photograph by John Goldsmith, TWAN

If astronomers' early predictions hold true, the holidays next year may hold a glowing gift for stargazers—a superbright comet, just discovered streaking near Saturn.

Even with powerful telescopes, comet 2012 S1 (ISON) is now just a faint glow in the constellation Cancer. But the ball of ice and rocks might become visible to the naked eye for a few months in late 2013 and early 2014—perhaps outshining the moon, astronomers say.

Advances such as the driverless car are no longer the stuff of sci-fi. They could soon make many human skills worthless

Almost without noticing it, our world crossed a significant threshold last week. Jerry Brown, the governor of California, signed into law a bill that will allow driverless cars on to his state's roads from 2015. Insofar as most people noticed this event at all, they probably sniffed derisively. For some, it'll be seen as an example of techno-hubris – "flags on the moon stuff" – as one of my acquaintances put it. For others, it will be seen as yet another confirmation of the proposition that the continental United States slopes gently from east to west, with the result that everything with a screw loose rolls into California.