craigb

soens
Depends on the grammatical intention of the sentence. It's totally correct if one is speaking directly to said planet with the intent of doing it harm.

I would nerdily () disagree.  If that was the case, you should separate the pronoun you are talking to with a comma like this: "Uranus, take a beating!"
 
It would be correct, however, if there were such a thing as a Uranu, and multiples of them were taking a beating.