So says the New Scientist, as faithfully reported by Rob Long at Ricochet.

Apparently the usual suspects: viruses, super-volcanoes, global warming, etc. will not suffice to kill all of us. The only planet-wide threats come from outer-space, and these are mostly rare. An asteroid big enough could do us in, but the more likely asteroid strike would only be enough to wipe out a medium-sized country.

In the comments, James Lileks sums up the consequences justly:

In related news: scientists believe “COPS” and “The Simpsons” will run for 101,00 years.