The Space Development Agency (SDA) has announced the selection of 19 companies to participate in a new program aimed at enhancing defense demonstration missions. Each company will receive $20,000 to support initial administrative costs as they prepare to bid on future contracts. The initiative focuses on the Proliferated Warfighter Space Architecture, which will include a large satellite constellation providing missile tracking and advanced communication capabilities. The selected firms, including notable names like SpaceX and Firefly Aerospace, will compete for various missions, underscoring the SDA's commitment to innovation and collaboration in space technology.