Lockheed Martin’s ET-137 space shuttle flight tank is ready for Nasa.

Lockheed has completed building the ET-137 for teh Endeavour space shuttle’s last mission to the International Space Station (ISS) in November 2010.

Weighing approximately 1.7 million pounds when loaded with 535,000gal of propellant, the external tank is 154ft tall and 28ft in diameter.

Lockheed is also building ET-138, which is scheduled to fly with shuttle Discovery in September 2010.