Have you heard about the theory that there is a hitherto-unknown giant planet out at the edge of our Solar system? It sounds intriguing, although most scientists seem to be leaning against the idea now.

The Time article linked above also makes mention of a theory popular in the ’80s about “a faint, far-off companion star to the Sun was sending down a rain of comets when it reached just the right point in its orbit.” (The name for this hypothetical object was “Nemesis”, by the way.)

What I don’t quite understand is how, if it really is there, we could have gone this long without noticing it, since we can see well beyond the Solar system already.

Anyway, like it says in the article, the smart money at the moment says that the supposed giant planet probably doesn’t exist. But if it turns out that it does, I want them to name it “Yuggoth“.