On: Jupiter’s North Pole Unlike Anything Encountered i...

[visakanv]

Since we're in the business of nitpicking – unique means one of a kind, so the "truly" is redundant. That said, there are so many planets in the Universe that it's practically impossible for any single one to be unique – the term is being used here not in a technically accurate way, but in a loose, "I want you to be impressed" sense.

[elbear → visakanv]

Well, if you think about it, there aren't two planets which are 100% alike, so each planet can be called unique.

[visakanv → elbear]

That's true, but in which case the term ceases to be useful!