Plan B From Outer Space
I'm always fascinated by the continuing attempts to circumvent Fermi's Paradox, the problem that no matter how probable we calculate the existence of space aliens, they never quite show up. The latest, which is something that's actually turned up on the Science Channel in recent years, is that they're probably hiding in oceans of warm water under ammonia ice on [name a moon of Jupiter or Saturn, or maybe Pluto.] Via Instapundit, which is fond of this sort of thing, I found this: Forget Mars—Jupiter’s moon Europa is one of the most promising worlds in the solar system to look for alien life, in large part because it boasts a huge liquid ocean sitting below a sheet of ice. Although Europa is just one-fourth the diameter of Earth, its ocean may have twice as much water as our planet’s oceans combined. And where there is water, there is the chance for life as we know it to settle down. In fact, that's the whole argument. I used to admire that talent. My father, c...