You are given a passage. You need to construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) its answer is the whole paragraph. Avoid creating questions that can be answered correctly without actually understanding the paragraph.
Q: Uranus obeys the Titius-Bode rule, it is Neptune which doesn't.

No hard explanation, only an analogy: in quantum mechanics, the outer orbits of electrons may approach a continuum, as they do in metal bonds. With the increasing distances in the logarithmic Titius-Bode sequence, probably the quadratic distance influence of gravity allow intermediary orbits.
A:
why is Uranus out of place?