In Brief Firefly Aerospace on Sunday said it had agreed to buy defense analytics firm SciTec for about $855 million in cash and stock, paving the path to its goal of becoming a significant player in the national security market.Firefly will pay around $300 million in cash and $555 million in new shares, and the deal is expected to close by the end of 2025. Princeton-based SciTec sells missile-warning and tracking systems, space domain awareness tools, and analytics to defense and intelligence customers. Ea ...