NASA awarded five sole-source contracts for engineering, evaluation and test services worth a combined maximum value of $658.25 million over the next six years to Los Angeles-based Aerospace Corp., the agency announced April 29.

Under the terms of the indefinite-delivery, indefinite-quantity agreements, Aerospace Corp. will provide technical products and services to NASA headquarters in Washington for a maximum value of $89 million, according to an April 29 news release. The balance of the five cost-plus-fixed-fee contracts will support eight field centers around the country, including up to $234.25 million for NASA’s Goddard Space Flight Center in Greenbelt, Md., and Ames Research Center at Moffett Field, Calif.; $210 million divided among Johnson Space Center in Houston, Glenn Research Center in Cleveland, and Dryden Flight Research Center in Edwards, Calif.; $75 million for Langley Research Center in Hampton, Va.; and $50 million split between Marshall Space Flight Center in Huntsville, Ala., and Stennis Space Center in Mississippi, according to the release.

Aerospace Corp., a federally funded research and development center, will provide independent assessments of select NASA programs and projects, including validation of technical risks, cost estimates and schedules, as well as safety and mission assurance risks. The company also will conduct management, scientific and technical studies.