Elon Musk’s SpaceX won a $149 million contract to build missile-tracking satellites for the Pentagon, the US Space Development Agency (SDA) said. This is the first government contract to build satellites or SpaceX known for its reusable rockets and astronaut capsules. The company is ramping up satellite production for Starlink, a growing constellation of hundreds of internet-beaming satellites that chief executive Elon Musk hopes will generate enough revenue to help fund SpaceX’s interplanetary goals. Under the contract, SpaceX will use its Starlink assembly plant in Redmond, Washington, to build four satellites fitted with a wide-angle infrared missile-tracking sensor supplied by a subcontractor. The awards are part of the SDA’s first phase to procure satellites to detect and track missiles like intercontinental ballistic missiles (ICBMs), which can travel long distances and are challenging to track and intercept. SpaceX in 2019 received $28 million from the Air Force to use the fledgling Starlink satellite network to test encrypted internet services with a number of military planes, though the Air Force has not ordered any Starlink satellites of its own.