If you're going to offer congratulations, you might want to get the name right.
It's called CURIOSITY, not Opportunity.
Update: Good job changing your question without acknowledging your mistake. The old "edit" function really comes in handy when your foot is in your mouth, eh?
This was an accomplishment to boast. We know more about the surface of the moon than about the bottom of the ocean, and we know more about Mars than about the moon.
IMHO, we need to do a bit more study of this planet than we do other planets. If we do not really understand what goes on here, how can we understand what goes on there?
Other people asked questions on similar topics, check out the answers they received:
Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them