When space shuttle Atlantis left Launch Pad 39A at the Kennedy Space Center in Florida on Friday, it marked the final liftoff for the decades-long space shuttle program. During the twelve day mission (since expanded to thirteen days), the four-person crew will deliver supplies to the International Space Station.
Atlantis' crew faces the uninspiring but essential task of unpacking 9,403 pounds (4,265 kg) of spare equipment, supplies and food from an Italian-made cargo carrier hauled to the station in the shuttle's cargo bay.
The space shuttle Atlantis has been in space 32 times since 1985, and orbited the earth 4,648 times, but she's now on her last journey.
Let's take a look at the trip so far: