Very First Image from Mars Curiosity Rover
It's just a low res thumbnail taken after a lot of dust was kicked up on the Martian surface from the Rover's landing. The 7 Minutes of terror ending happily with the Rover landing safely and broadcasting data and images.
I hope many of you got to watch the scenes in the NASA control room while the landing was being monitored. This is an awesome day for science in general and NASA specifically.