The last space shuttle mission was STS-135
Atlantis was the last space shuttle, But the mission was STS-135
Space Shuttle Discovery.
STS-135 is the last space shuttle mission with Atlantis on June 28th 2011.
June 28, 2011. It will also be the last ever space shuttle mission.
There has never been a space shuttle mission to Mars. The space shuttle is not designed for planetary trips.
STS-135
The last planned space shuttle was the Atlantis
The space shuttle Atlantis launch July 8, 2011 and landed July 21, 2011 on mission STS-135, the last of the space shuttle program. Following that mission Atlantis was prepared for display at the Kennedy Space Center Visitors Complex not far from the pads where she had been launched on 33 missions.
Shuttle STS 127
The last space shuttle landing was by Space Shuttle Atlantis on July 21 at 5:57 a.m. EDT.
This was to have happened last year, but problems were found that had to be corrected. The latest estimate is in Feb. 2011, but this is still subject to change. Check the nasa.gov website for the latest information.
I think it's Discovery