As part of its effort to get back to the moon and to go potentially to Mars, NASA has assigned various roles to its field offices in the development of its Ares 5 rocket. Space.com:
Development of the Ares 5 rocket and its Earth departure stage will be lead by the Huntsville, Ala.-based Marshall Space Flight Center. Marshall will also lead development of the lunar lander's decent stage. Marshall is already in charge of developing and testing the smaller Ares 1 rocket which will be used starting around 2015 to launch the Orion Crew Exploration Vehicle to the international space station. When lunar missions commence around 2019, NASA intends to use the Ares 1 to launch Orion into low-Earth orbit, where it will meet up with the separately launched lunar lander for a several day journey to the Moon under the power of the Earth departure stage, which is a giant fuel tank with a rocket engine attached.
Ames Research Center near San Francisco was assigned lead responsibility for Ares 5's integrated health management system and a supporting role developing its payload shroud. Ames will also lead development of integrated health management systems for the lunar lander and other lunar surface systems, and work with other field centers to build mission operations simulations capabilities, NASA officials said (hyperlink supplied).
The article points out that the retirement of the Space Shuttle in 2010 will free up the money to begin serious development of the vehicle.
The Ares 5 is the rocket on the left side of the picture. Image Credit: NASA