The U.S. Space Force has added Relativity Space and Impulse Space to its National Security Space Launch (NSSL) Phase 3 Lane 1 program, a move that expands the pool of companies eligible to compete for military launch contracts. The selection marks a shift toward integrating newer, non-traditional launch providers into the national security space ecosystem.

Relativity Space brings its 3D-printed rocket technology, namely the Terran R, a reusable medium-to-heavy lift vehicle designed for high-cadence missions. Impulse Space, meanwhile, focuses on in-space transportation with its Helios kick stage, which could enable precise orbital insertion for payloads. Both companies represent a new generation of space ventures aiming to meet military requirements for flexibility and rapid responsiveness.

The Lane 1 track is specifically structured to allow emerging providers to bid on missions that do not require the highest level of certification, lowering the barrier to entry. This contrasts with Lane 2, which demands mature, proven systems. The selection follows a competitive evaluation process, though specific contract values or mission assignments have not been disclosed.

By adding these firms, the Space Force signals a strategic pivot toward fostering commercial innovation and redundancy in launch supply. Critics, however, caution that newer companies may struggle with rigorous military qualification standards and sustained reliability—a key concern given the high stakes of national security payloads.

This development aligns with broader Department of Defense efforts to diversify its launch roster, reducing reliance on legacy providers and accelerating access to space for critical missions. The impact on the launch industry could be significant, as it encourages more private investment in next-generation rocket systems.