WASHINGTON — NASA picked up a two-year, $172.8 million option on Tullahoma, Tennessee-based Jacobs Technology’s Test and Operations Support Contract, which covers engineering and program support services for space launches and ground infrastructure improvements at NASA’s main launch facility, the Kennedy Space Center in Florida.

The option just exercised runs through Sept. 30, 2016, the agency wrote in an Aug. 25 press release. The total potential value of the cost-plus Test and Operations Support Contract — which Jacobs got in 2012 after beating out competing proposals from Boeing Co. and Northrop Grumman — is $500 million through Sept. 2022, according to NASA procurement notes posted online.

NASA said Jacobs’ contract supports programs including the international space station; the Space Launch System and its companion crew capsule, the Orion Multi-Purpose Crew Vehicle; and the Launch Services Program that brokers rides to orbit for NASA spacecraft.

Dan Leone is a SpaceNews staff writer, covering NASA, NOAA and a growing number of entrepreneurial space companies. He earned a bachelor’s degree in public communications from the American University in Washington.