Lockheed Martin’s Space-Based Interceptor (SBI) builds on the company’s interceptor heritage from THAAD and PAC-3, while complementing the Next Generation Interceptor and capabilities in hypersonic strike and missile warning and tracking to form a multi-domain defense network.

The SBI initiative adds an early, additional layer to a layered, multi-domain shield designed to protect the homeland and critical infrastructure from evolving and emerging threats.

The program aims to accelerate development, testing, and integration to provide an early engagement layer that expands coverage, improves survivability, and strengthens deterrence against missile threats.

Lockheed Martin has been selected by the U.S. Space Force Space Systems Command to develop space-based interceptor capabilities as part of an integrated homeland defense solution.

Company executives say Lockheed Martin is leveraging its proven capabilities, technology, and industrial base to deliver an integrated SBI demonstration by 2028 and accelerate delivery of next-generation air and missile defense.