Pluto

You forgot the little sign, "Coming soon: another Starbucks."

I'm still quite surprised how sharp and jagged the rocks are, looks like new rock, not millions of years old

Well, are you familiar with the tenets of Last Thursdayism? It claims that the universe was created, in toto last thursday, and any evidence to the contrary, including our memories, was simply created 'in place' to confuse us.

There's also another sect that believes the universe does not yet exist, and will be created next Thursday, and what we are experiencing now is merely a memory that will be created inside our heads when we are created.

Both sects are full of doodo, however. Everyone knows the universe was created last Tuesday.

(Hint, no/thin atmosphere and no liquid water, no wind/water erosion. No erosion, no 'old-looking' rocks.)