Space shuttle Atlantis is set to liftoff today on the final flight of the shuttle program. It's a 12-day mission to the International Space Station. It will carry a crew of four and the Raffaello multipurpose logistics module containing supplies and spare parts for the space station. The STS-135 astronauts are: Commander Chris Ferguson, Pilot Doug Hurley, and Mission Specialists Sandy Magnus and Rex Weilham.
Atlantis will launch in 5 hours and 15 minutes.