HOUSTON — NASA has awarded a three-year contract extension to Jacobs Technology Inc. of Tullahoma, Tenn., for engineering and science support at NASA’s Johnson Space Center in Houston.

The contract extension has an estimated value of $978 million. The extension brings the total contract value to approximately $2.16 billion through Jan. 31, 2013, with an eight year total period of performance.

Work will be performed primarily at Johnson. Services are provided to Johnson’s Engineering Directorate and Astromaterials Research and Exploration Science office.

The extension provides:

Continuity of engineering operations, analysis, and hardware and systems certification for fly-out of the Space Shuttle Program.

Continuity of engineering development, operations, and hardware and systems certification for the International Space Station during the initial six-person crew on-orbit operations, the last shuttle flight to the station, space station assembly completion, Commercial Orbital Transportation Services, the European Automated Transfer Vehicle and the Japanese H-2 Transfer Vehicle.

Completion of major milestones for design, development, test and evaluation of government-furnished equipment for the Orion spacecraft and critical test beds supporting the development of Orion.

The engineering science contract is a hybrid cost-plus-award-fee, firm-fixed-price contract. It includes a baseline effort, an indefinite-delivery, indefinite-quantity effort, and a level-of-effort requirement.

The prime contractor, Jacobs Sverdrup, will manage the effort from Houston. Major subcontractors include ERC Inc. and Manufacturing Technical Solutions Inc. of Huntsville, Ala., and Barrios Technology Ltd., GeoControl Systems Inc., Hamilton Sundstrand Management Services Inc. and Muniz Engineering Inc. of Houston.

For information about NASA and agency programs, visit: http://www.nasa.gov