In fact, we already have; that's why there's a 3 in its name.
The other two didn't make a planetary close pass. As we see more of them, the statistical strangeness of the third one getting so close to Mars will fade. (Or, I suppose, they keep doing it and then we really will have a puzzle on our hands!)
The other two didn't make a planetary close pass. As we see more of them, the statistical strangeness of the third one getting so close to Mars will fade. (Or, I suppose, they keep doing it and then we really will have a puzzle on our hands!)