Yep, the capsule heat shield -- which is designed to withstand a fiery entry into Earth's atmosphere at mission end -- already has a little ding from a high-speed encounter with a teeny weeny particle somewhere out there in empty space. It didn't escape my attention that this photo was released more than a year after it was acquired. "After further investigation," heh. I'll bet those three words elide an awful lot of emails and meetings. Joking aside, I'm very happy to hear that this little dot is of no concern.

Here, you can compare it to the image of the spacecraft taken right after launch: